Home / 38,188.96-52,700.72-21,421.92

Finding the Fourth Proportional to 38,188.96, 52,700.72 and 21,421.92

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Solution

The fourth proportional to 38,188.96, 52,700.72 and 21,421.92 is: 29,562.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,188.96 : 52,700.72 = 21,421.92 : x
  2. Step 2: Convert to fraction form
    38,188.96/52,700.72 = 21,421.92/x
  3. Step 3: Cross multiply
    38,188.96x = 52,700.72 × 21,421.92
  4. Step 4: Simplify right side
    38,188.96x = 1,128,950,607.78
  5. Step 5: Solve for x
    x = 1,128,950,607.78/38,188.96
  6. Step 6: Final answer
    x = 29,562.22

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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.