Home / 28,280.77-42,421.26-9,560.95

Finding the Fourth Proportional to 28,280.77, 42,421.26 and 9,560.95

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Solution

The fourth proportional to 28,280.77, 42,421.26 and 9,560.95 is: 14,341.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,280.77 : 42,421.26 = 9,560.95 : x
  2. Step 2: Convert to fraction form
    28,280.77/42,421.26 = 9,560.95/x
  3. Step 3: Cross multiply
    28,280.77x = 42,421.26 × 9,560.95
  4. Step 4: Simplify right side
    28,280.77x = 405,587,545.80
  5. Step 5: Solve for x
    x = 405,587,545.80/28,280.77
  6. Step 6: Final answer
    x = 14,341.46

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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.