Home / 39,490.74-54,491.13-22,720.50

Finding the Fourth Proportional to 39,490.74, 54,491.13 and 22,720.50

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Solution

The fourth proportional to 39,490.74, 54,491.13 and 22,720.50 is: 31,350.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,490.74 : 54,491.13 = 22,720.50 : x
  2. Step 2: Convert to fraction form
    39,490.74/54,491.13 = 22,720.50/x
  3. Step 3: Cross multiply
    39,490.74x = 54,491.13 × 22,720.50
  4. Step 4: Simplify right side
    39,490.74x = 1,238,065,719.17
  5. Step 5: Solve for x
    x = 1,238,065,719.17/39,490.74
  6. Step 6: Final answer
    x = 31,350.79

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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.