Home / 38,729.08-58,088.13-12,430.42

Finding the Fourth Proportional to 38,729.08, 58,088.13 and 12,430.42

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Solution

The fourth proportional to 38,729.08, 58,088.13 and 12,430.42 is: 18,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,729.08 : 58,088.13 = 12,430.42 : x
  2. Step 2: Convert to fraction form
    38,729.08/58,088.13 = 12,430.42/x
  3. Step 3: Cross multiply
    38,729.08x = 58,088.13 × 12,430.42
  4. Step 4: Simplify right side
    38,729.08x = 722,059,852.91
  5. Step 5: Solve for x
    x = 722,059,852.91/38,729.08
  6. Step 6: Final answer
    x = 18,643.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.