Home / 42,555.44-63,840.08-12,572.72

Finding the Fourth Proportional to 42,555.44, 63,840.08 and 12,572.72

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Solution

The fourth proportional to 42,555.44, 63,840.08 and 12,572.72 is: 18,861.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,555.44 : 63,840.08 = 12,572.72 : x
  2. Step 2: Convert to fraction form
    42,555.44/63,840.08 = 12,572.72/x
  3. Step 3: Cross multiply
    42,555.44x = 63,840.08 × 12,572.72
  4. Step 4: Simplify right side
    42,555.44x = 802,643,450.62
  5. Step 5: Solve for x
    x = 802,643,450.62/42,555.44
  6. Step 6: Final answer
    x = 18,861.12

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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.