Home / 26,475.81-39,702.05-12,439.81

Finding the Fourth Proportional to 26,475.81, 39,702.05 and 12,439.81

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Solution

The fourth proportional to 26,475.81, 39,702.05 and 12,439.81 is: 18,654.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,475.81 : 39,702.05 = 12,439.81 : x
  2. Step 2: Convert to fraction form
    26,475.81/39,702.05 = 12,439.81/x
  3. Step 3: Cross multiply
    26,475.81x = 39,702.05 × 12,439.81
  4. Step 4: Simplify right side
    26,475.81x = 493,885,958.61
  5. Step 5: Solve for x
    x = 493,885,958.61/26,475.81
  6. Step 6: Final answer
    x = 18,654.23

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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.