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Finding the Fourth Proportional to 43,654.38, 65,486.40 and 15,580.98

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Solution

The fourth proportional to 43,654.38, 65,486.40 and 15,580.98 is: 23,373.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,654.38 : 65,486.40 = 15,580.98 : x
  2. Step 2: Convert to fraction form
    43,654.38/65,486.40 = 15,580.98/x
  3. Step 3: Cross multiply
    43,654.38x = 65,486.40 × 15,580.98
  4. Step 4: Simplify right side
    43,654.38x = 1,020,342,288.67
  5. Step 5: Solve for x
    x = 1,020,342,288.67/43,654.38
  6. Step 6: Final answer
    x = 23,373.19

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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.