Home / 23,781-35,671.50-9,930

Finding the Fourth Proportional to 23,781, 35,671.50 and 9,930

Calculator

Solution

The fourth proportional to 23,781, 35,671.50 and 9,930 is: 14,895

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,781 : 35,671.50 = 9,930 : x
  2. Step 2: Convert to fraction form
    23,781/35,671.50 = 9,930/x
  3. Step 3: Cross multiply
    23,781x = 35,671.50 × 9,930
  4. Step 4: Simplify right side
    23,781x = 354,217,995
  5. Step 5: Solve for x
    x = 354,217,995/23,781
  6. Step 6: Final answer
    x = 14,895

Related Problems

Find fourth proportional to 11,890.50, 17,835.75 and 4,965
Half scale
Find fourth proportional to 47,562, 71,343 and 19,860
Double scale
Find fourth proportional to 23,782, 35,673 and 9,931
Similar ratio
Find fourth proportional to 35,671.50, 53,507.25 and 14,895
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.