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Finding the Fourth Proportional to 15,807.60, 23,711.40 and 15,078.60

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Solution

The fourth proportional to 15,807.60, 23,711.40 and 15,078.60 is: 22,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,807.60 : 23,711.40 = 15,078.60 : x
  2. Step 2: Convert to fraction form
    15,807.60/23,711.40 = 15,078.60/x
  3. Step 3: Cross multiply
    15,807.60x = 23,711.40 × 15,078.60
  4. Step 4: Simplify right side
    15,807.60x = 357,534,716.04
  5. Step 5: Solve for x
    x = 357,534,716.04/15,807.60
  6. Step 6: Final answer
    x = 22,617.90

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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.