Home / 28,358.04-42,537.12-7,581

Finding the Fourth Proportional to 28,358.04, 42,537.12 and 7,581

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Solution

The fourth proportional to 28,358.04, 42,537.12 and 7,581 is: 11,371.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358.04 : 42,537.12 = 7,581 : x
  2. Step 2: Convert to fraction form
    28,358.04/42,537.12 = 7,581/x
  3. Step 3: Cross multiply
    28,358.04x = 42,537.12 × 7,581
  4. Step 4: Simplify right side
    28,358.04x = 322,473,906.72
  5. Step 5: Solve for x
    x = 322,473,906.72/28,358.04
  6. Step 6: Final answer
    x = 11,371.52

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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.