Home / 38,571.48-53,226.14-21,572.78

Finding the Fourth Proportional to 38,571.48, 53,226.14 and 21,572.78

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Solution

The fourth proportional to 38,571.48, 53,226.14 and 21,572.78 is: 29,769.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,571.48 : 53,226.14 = 21,572.78 : x
  2. Step 2: Convert to fraction form
    38,571.48/53,226.14 = 21,572.78/x
  3. Step 3: Cross multiply
    38,571.48x = 53,226.14 × 21,572.78
  4. Step 4: Simplify right side
    38,571.48x = 1,148,235,700.61
  5. Step 5: Solve for x
    x = 1,148,235,700.61/38,571.48
  6. Step 6: Final answer
    x = 29,769.04

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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.