Home / 39,389.93-54,358.06-21,484.88

Finding the Fourth Proportional to 39,389.93, 54,358.06 and 21,484.88

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Solution

The fourth proportional to 39,389.93, 54,358.06 and 21,484.88 is: 29,649.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,389.93 : 54,358.06 = 21,484.88 : x
  2. Step 2: Convert to fraction form
    39,389.93/54,358.06 = 21,484.88/x
  3. Step 3: Cross multiply
    39,389.93x = 54,358.06 × 21,484.88
  4. Step 4: Simplify right side
    39,389.93x = 1,167,876,396.13
  5. Step 5: Solve for x
    x = 1,167,876,396.13/39,389.93
  6. Step 6: Final answer
    x = 29,649.11

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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.