Home / 35,817.36-53,712-21,030

Finding the Fourth Proportional to 35,817.36, 53,712 and 21,030

Calculator

Solution

The fourth proportional to 35,817.36, 53,712 and 21,030 is: 31,536.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,817.36 : 53,712 = 21,030 : x
  2. Step 2: Convert to fraction form
    35,817.36/53,712 = 21,030/x
  3. Step 3: Cross multiply
    35,817.36x = 53,712 × 21,030
  4. Step 4: Simplify right side
    35,817.36x = 1,129,563,360
  5. Step 5: Solve for x
    x = 1,129,563,360/35,817.36
  6. Step 6: Final answer
    x = 31,536.76

Related Problems

Find fourth proportional to 17,908.68, 26,856 and 10,515
Half scale
Find fourth proportional to 71,634.72, 107,424 and 42,060
Double scale
Find fourth proportional to 35,818.36, 53,713.50 and 21,031
Similar ratio
Find fourth proportional to 53,726.04, 80,568 and 31,545
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.