Home / 28,320.26-42,481.02-10,307.90

Finding the Fourth Proportional to 28,320.26, 42,481.02 and 10,307.90

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Solution

The fourth proportional to 28,320.26, 42,481.02 and 10,307.90 is: 15,462.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.26 : 42,481.02 = 10,307.90 : x
  2. Step 2: Convert to fraction form
    28,320.26/42,481.02 = 10,307.90/x
  3. Step 3: Cross multiply
    28,320.26x = 42,481.02 × 10,307.90
  4. Step 4: Simplify right side
    28,320.26x = 437,890,106.06
  5. Step 5: Solve for x
    x = 437,890,106.06/28,320.26
  6. Step 6: Final answer
    x = 15,462.08

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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.