Home / 28,343.20-42,514.80-25,281.40

Finding the Fourth Proportional to 28,343.20, 42,514.80 and 25,281.40

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Solution

The fourth proportional to 28,343.20, 42,514.80 and 25,281.40 is: 37,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.20 : 42,514.80 = 25,281.40 : x
  2. Step 2: Convert to fraction form
    28,343.20/42,514.80 = 25,281.40/x
  3. Step 3: Cross multiply
    28,343.20x = 42,514.80 × 25,281.40
  4. Step 4: Simplify right side
    28,343.20x = 1,074,833,664.72
  5. Step 5: Solve for x
    x = 1,074,833,664.72/28,343.20
  6. Step 6: Final answer
    x = 37,922.10

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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.