Home / 42,121.72-63,178.25-14,038.73

Finding the Fourth Proportional to 42,121.72, 63,178.25 and 14,038.73

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Solution

The fourth proportional to 42,121.72, 63,178.25 and 14,038.73 is: 21,056.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,121.72 : 63,178.25 = 14,038.73 : x
  2. Step 2: Convert to fraction form
    42,121.72/63,178.25 = 14,038.73/x
  3. Step 3: Cross multiply
    42,121.72x = 63,178.25 × 14,038.73
  4. Step 4: Simplify right side
    42,121.72x = 886,942,599.83
  5. Step 5: Solve for x
    x = 886,942,599.83/42,121.72
  6. Step 6: Final answer
    x = 21,056.66

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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.