Home / 25,338.60-38,007.90-12,192.30

Finding the Fourth Proportional to 25,338.60, 38,007.90 and 12,192.30

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Solution

The fourth proportional to 25,338.60, 38,007.90 and 12,192.30 is: 18,288.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,338.60 : 38,007.90 = 12,192.30 : x
  2. Step 2: Convert to fraction form
    25,338.60/38,007.90 = 12,192.30/x
  3. Step 3: Cross multiply
    25,338.60x = 38,007.90 × 12,192.30
  4. Step 4: Simplify right side
    25,338.60x = 463,403,719.17
  5. Step 5: Solve for x
    x = 463,403,719.17/25,338.60
  6. Step 6: Final answer
    x = 18,288.45

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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.