Home / 38,501.48-53,132.82-21,731.24

Finding the Fourth Proportional to 38,501.48, 53,132.82 and 21,731.24

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Solution

The fourth proportional to 38,501.48, 53,132.82 and 21,731.24 is: 29,989.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,501.48 : 53,132.82 = 21,731.24 : x
  2. Step 2: Convert to fraction form
    38,501.48/53,132.82 = 21,731.24/x
  3. Step 3: Cross multiply
    38,501.48x = 53,132.82 × 21,731.24
  4. Step 4: Simplify right side
    38,501.48x = 1,154,642,063.30
  5. Step 5: Solve for x
    x = 1,154,642,063.30/38,501.48
  6. Step 6: Final answer
    x = 29,989.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.