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Finding the Fourth Proportional to 23,658.60, 35,487.90 and 19,430.40

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Solution

The fourth proportional to 23,658.60, 35,487.90 and 19,430.40 is: 29,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,658.60 : 35,487.90 = 19,430.40 : x
  2. Step 2: Convert to fraction form
    23,658.60/35,487.90 = 19,430.40/x
  3. Step 3: Cross multiply
    23,658.60x = 35,487.90 × 19,430.40
  4. Step 4: Simplify right side
    23,658.60x = 689,544,092.16
  5. Step 5: Solve for x
    x = 689,544,092.16/23,658.60
  6. Step 6: Final answer
    x = 29,145.60

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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.