Home / 42,146.73-63,220.09-12,585.32

Finding the Fourth Proportional to 42,146.73, 63,220.09 and 12,585.32

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Solution

The fourth proportional to 42,146.73, 63,220.09 and 12,585.32 is: 18,877.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,146.73 : 63,220.09 = 12,585.32 : x
  2. Step 2: Convert to fraction form
    42,146.73/63,220.09 = 12,585.32/x
  3. Step 3: Cross multiply
    42,146.73x = 63,220.09 × 12,585.32
  4. Step 4: Simplify right side
    42,146.73x = 795,645,000.15
  5. Step 5: Solve for x
    x = 795,645,000.15/42,146.73
  6. Step 6: Final answer
    x = 18,877.98

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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.