Home / 42,408.40-63,612.60-14,709.20

Finding the Fourth Proportional to 42,408.40, 63,612.60 and 14,709.20

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Solution

The fourth proportional to 42,408.40, 63,612.60 and 14,709.20 is: 22,063.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,408.40 : 63,612.60 = 14,709.20 : x
  2. Step 2: Convert to fraction form
    42,408.40/63,612.60 = 14,709.20/x
  3. Step 3: Cross multiply
    42,408.40x = 63,612.60 × 14,709.20
  4. Step 4: Simplify right side
    42,408.40x = 935,690,455.92
  5. Step 5: Solve for x
    x = 935,690,455.92/42,408.40
  6. Step 6: Final answer
    x = 22,063.80

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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.