Home / 38,199.24-52,712.10-21,429

Finding the Fourth Proportional to 38,199.24, 52,712.10 and 21,429

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Solution

The fourth proportional to 38,199.24, 52,712.10 and 21,429 is: 29,570.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,199.24 : 52,712.10 = 21,429 : x
  2. Step 2: Convert to fraction form
    38,199.24/52,712.10 = 21,429/x
  3. Step 3: Cross multiply
    38,199.24x = 52,712.10 × 21,429
  4. Step 4: Simplify right side
    38,199.24x = 1,129,567,590.90
  5. Step 5: Solve for x
    x = 1,129,567,590.90/38,199.24
  6. Step 6: Final answer
    x = 29,570.42

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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.