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Finding the Fourth Proportional to 20,565.70, 30,848.55 and 14,952.40

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Solution

The fourth proportional to 20,565.70, 30,848.55 and 14,952.40 is: 22,428.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565.70 : 30,848.55 = 14,952.40 : x
  2. Step 2: Convert to fraction form
    20,565.70/30,848.55 = 14,952.40/x
  3. Step 3: Cross multiply
    20,565.70x = 30,848.55 × 14,952.40
  4. Step 4: Simplify right side
    20,565.70x = 461,259,859.02
  5. Step 5: Solve for x
    x = 461,259,859.02/20,565.70
  6. Step 6: Final answer
    x = 22,428.60

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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.