Home / 38,987.30-53,802.36-21,082.24

Finding the Fourth Proportional to 38,987.30, 53,802.36 and 21,082.24

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Solution

The fourth proportional to 38,987.30, 53,802.36 and 21,082.24 is: 29,093.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,987.30 : 53,802.36 = 21,082.24 : x
  2. Step 2: Convert to fraction form
    38,987.30/53,802.36 = 21,082.24/x
  3. Step 3: Cross multiply
    38,987.30x = 53,802.36 × 21,082.24
  4. Step 4: Simplify right side
    38,987.30x = 1,134,274,266.09
  5. Step 5: Solve for x
    x = 1,134,274,266.09/38,987.30
  6. Step 6: Final answer
    x = 29,093.43

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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.