Home / 38,381.13-52,967.79-21,386.52

Finding the Fourth Proportional to 38,381.13, 52,967.79 and 21,386.52

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Solution

The fourth proportional to 38,381.13, 52,967.79 and 21,386.52 is: 29,514.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,381.13 : 52,967.79 = 21,386.52 : x
  2. Step 2: Convert to fraction form
    38,381.13/52,967.79 = 21,386.52/x
  3. Step 3: Cross multiply
    38,381.13x = 52,967.79 × 21,386.52
  4. Step 4: Simplify right side
    38,381.13x = 1,132,796,700.19
  5. Step 5: Solve for x
    x = 1,132,796,700.19/38,381.13
  6. Step 6: Final answer
    x = 29,514.42

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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.