Home / 25,384.26-38,080.47-8,740.20

Finding the Fourth Proportional to 25,384.26, 38,080.47 and 8,740.20

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Solution

The fourth proportional to 25,384.26, 38,080.47 and 8,740.20 is: 13,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,384.26 : 38,080.47 = 8,740.20 : x
  2. Step 2: Convert to fraction form
    25,384.26/38,080.47 = 8,740.20/x
  3. Step 3: Cross multiply
    25,384.26x = 38,080.47 × 8,740.20
  4. Step 4: Simplify right side
    25,384.26x = 332,830,923.89
  5. Step 5: Solve for x
    x = 332,830,923.89/25,384.26
  6. Step 6: Final answer
    x = 13,111.70

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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.