Home / 17,439.60-26,122.80-13,724.28

Finding the Fourth Proportional to 17,439.60, 26,122.80 and 13,724.28

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Solution

The fourth proportional to 17,439.60, 26,122.80 and 13,724.28 is: 20,557.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,439.60 : 26,122.80 = 13,724.28 : x
  2. Step 2: Convert to fraction form
    17,439.60/26,122.80 = 13,724.28/x
  3. Step 3: Cross multiply
    17,439.60x = 26,122.80 × 13,724.28
  4. Step 4: Simplify right side
    17,439.60x = 358,516,621.58
  5. Step 5: Solve for x
    x = 358,516,621.58/17,439.60
  6. Step 6: Final answer
    x = 20,557.62

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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.