Home / 38,987.33-53,802.17-21,082.17

Finding the Fourth Proportional to 38,987.33, 53,802.17 and 21,082.17

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Solution

The fourth proportional to 38,987.33, 53,802.17 and 21,082.17 is: 29,093.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,987.33 : 53,802.17 = 21,082.17 : x
  2. Step 2: Convert to fraction form
    38,987.33/53,802.17 = 21,082.17/x
  3. Step 3: Cross multiply
    38,987.33x = 53,802.17 × 21,082.17
  4. Step 4: Simplify right side
    38,987.33x = 1,134,266,788.30
  5. Step 5: Solve for x
    x = 1,134,266,788.30/38,987.33
  6. Step 6: Final answer
    x = 29,093.22

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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.