Home / 28,278.60-39,024.12-16,341.88

Finding the Fourth Proportional to 28,278.60, 39,024.12 and 16,341.88

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Solution

The fourth proportional to 28,278.60, 39,024.12 and 16,341.88 is: 22,551.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.60 : 39,024.12 = 16,341.88 : x
  2. Step 2: Convert to fraction form
    28,278.60/39,024.12 = 16,341.88/x
  3. Step 3: Cross multiply
    28,278.60x = 39,024.12 × 16,341.88
  4. Step 4: Simplify right side
    28,278.60x = 637,727,486.15
  5. Step 5: Solve for x
    x = 637,727,486.15/28,278.60
  6. Step 6: Final answer
    x = 22,551.59

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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.