Home / 39,342.53-54,291.99-21,437.69

Finding the Fourth Proportional to 39,342.53, 54,291.99 and 21,437.69

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Solution

The fourth proportional to 39,342.53, 54,291.99 and 21,437.69 is: 29,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,342.53 : 54,291.99 = 21,437.69 : x
  2. Step 2: Convert to fraction form
    39,342.53/54,291.99 = 21,437.69/x
  3. Step 3: Cross multiply
    39,342.53x = 54,291.99 × 21,437.69
  4. Step 4: Simplify right side
    39,342.53x = 1,163,894,851.10
  5. Step 5: Solve for x
    x = 1,163,894,851.10/39,342.53
  6. Step 6: Final answer
    x = 29,583.63

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Double scale
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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.