Home / 42,406.40-63,638.75-14,704.40

Finding the Fourth Proportional to 42,406.40, 63,638.75 and 14,704.40

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Solution

The fourth proportional to 42,406.40, 63,638.75 and 14,704.40 is: 22,066.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,406.40 : 63,638.75 = 14,704.40 : x
  2. Step 2: Convert to fraction form
    42,406.40/63,638.75 = 14,704.40/x
  3. Step 3: Cross multiply
    42,406.40x = 63,638.75 × 14,704.40
  4. Step 4: Simplify right side
    42,406.40x = 935,769,635.50
  5. Step 5: Solve for x
    x = 935,769,635.50/42,406.40
  6. Step 6: Final answer
    x = 22,066.71

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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.