Home / 43,166.98-64,753.08-13,585.78

Finding the Fourth Proportional to 43,166.98, 64,753.08 and 13,585.78

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Solution

The fourth proportional to 43,166.98, 64,753.08 and 13,585.78 is: 20,379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,166.98 : 64,753.08 = 13,585.78 : x
  2. Step 2: Convert to fraction form
    43,166.98/64,753.08 = 13,585.78/x
  3. Step 3: Cross multiply
    43,166.98x = 64,753.08 × 13,585.78
  4. Step 4: Simplify right side
    43,166.98x = 879,721,099.20
  5. Step 5: Solve for x
    x = 879,721,099.20/43,166.98
  6. Step 6: Final answer
    x = 20,379.49

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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.