Home / 28,012.28-42,006.08-8,292.36

Finding the Fourth Proportional to 28,012.28, 42,006.08 and 8,292.36

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Solution

The fourth proportional to 28,012.28, 42,006.08 and 8,292.36 is: 12,434.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.28 : 42,006.08 = 8,292.36 : x
  2. Step 2: Convert to fraction form
    28,012.28/42,006.08 = 8,292.36/x
  3. Step 3: Cross multiply
    28,012.28x = 42,006.08 × 8,292.36
  4. Step 4: Simplify right side
    28,012.28x = 348,329,537.55
  5. Step 5: Solve for x
    x = 348,329,537.55/28,012.28
  6. Step 6: Final answer
    x = 12,434.89

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1.5x scale

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.