Home / 28,301.20-42,451.80-25,239.40

Finding the Fourth Proportional to 28,301.20, 42,451.80 and 25,239.40

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Solution

The fourth proportional to 28,301.20, 42,451.80 and 25,239.40 is: 37,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.20 : 42,451.80 = 25,239.40 : x
  2. Step 2: Convert to fraction form
    28,301.20/42,451.80 = 25,239.40/x
  3. Step 3: Cross multiply
    28,301.20x = 42,451.80 × 25,239.40
  4. Step 4: Simplify right side
    28,301.20x = 1,071,457,960.92
  5. Step 5: Solve for x
    x = 1,071,457,960.92/28,301.20
  6. Step 6: Final answer
    x = 37,859.10

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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.