Home / 28,002.90-42,002.97-10,471.36

Finding the Fourth Proportional to 28,002.90, 42,002.97 and 10,471.36

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Solution

The fourth proportional to 28,002.90, 42,002.97 and 10,471.36 is: 15,706.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002.90 : 42,002.97 = 10,471.36 : x
  2. Step 2: Convert to fraction form
    28,002.90/42,002.97 = 10,471.36/x
  3. Step 3: Cross multiply
    28,002.90x = 42,002.97 × 10,471.36
  4. Step 4: Simplify right side
    28,002.90x = 439,828,213.32
  5. Step 5: Solve for x
    x = 439,828,213.32/28,002.90
  6. Step 6: Final answer
    x = 15,706.52

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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.