Home / 35,818.36-53,713.50-21,031

Finding the Fourth Proportional to 35,818.36, 53,713.50 and 21,031

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Solution

The fourth proportional to 35,818.36, 53,713.50 and 21,031 is: 31,538.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,818.36 : 53,713.50 = 21,031 : x
  2. Step 2: Convert to fraction form
    35,818.36/53,713.50 = 21,031/x
  3. Step 3: Cross multiply
    35,818.36x = 53,713.50 × 21,031
  4. Step 4: Simplify right side
    35,818.36x = 1,129,648,618.50
  5. Step 5: Solve for x
    x = 1,129,648,618.50/35,818.36
  6. Step 6: Final answer
    x = 31,538.26

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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.