Home / 38,432.16-53,038.82-21,666.24

Finding the Fourth Proportional to 38,432.16, 53,038.82 and 21,666.24

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Solution

The fourth proportional to 38,432.16, 53,038.82 and 21,666.24 is: 29,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,432.16 : 53,038.82 = 21,666.24 : x
  2. Step 2: Convert to fraction form
    38,432.16/53,038.82 = 21,666.24/x
  3. Step 3: Cross multiply
    38,432.16x = 53,038.82 × 21,666.24
  4. Step 4: Simplify right side
    38,432.16x = 1,149,151,803.44
  5. Step 5: Solve for x
    x = 1,149,151,803.44/38,432.16
  6. Step 6: Final answer
    x = 29,900.79

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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.