Home / 18,788.28-25,931.34-13,425.24

Finding the Fourth Proportional to 18,788.28, 25,931.34 and 13,425.24

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Solution

The fourth proportional to 18,788.28, 25,931.34 and 13,425.24 is: 18,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.28 : 25,931.34 = 13,425.24 : x
  2. Step 2: Convert to fraction form
    18,788.28/25,931.34 = 13,425.24/x
  3. Step 3: Cross multiply
    18,788.28x = 25,931.34 × 13,425.24
  4. Step 4: Simplify right side
    18,788.28x = 348,134,463.02
  5. Step 5: Solve for x
    x = 348,134,463.02/18,788.28
  6. Step 6: Final answer
    x = 18,529.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.