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Finding the Fourth Proportional to 17,030.80, 25,565.40 and 13,152.40

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Solution

The fourth proportional to 17,030.80, 25,565.40 and 13,152.40 is: 19,743.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,030.80 : 25,565.40 = 13,152.40 : x
  2. Step 2: Convert to fraction form
    17,030.80/25,565.40 = 13,152.40/x
  3. Step 3: Cross multiply
    17,030.80x = 25,565.40 × 13,152.40
  4. Step 4: Simplify right side
    17,030.80x = 336,246,366.96
  5. Step 5: Solve for x
    x = 336,246,366.96/17,030.80
  6. Step 6: Final answer
    x = 19,743.43

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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.