Home / 28,041.76-42,057.68-9,319.92

Finding the Fourth Proportional to 28,041.76, 42,057.68 and 9,319.92

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Solution

The fourth proportional to 28,041.76, 42,057.68 and 9,319.92 is: 13,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,041.76 : 42,057.68 = 9,319.92 : x
  2. Step 2: Convert to fraction form
    28,041.76/42,057.68 = 9,319.92/x
  3. Step 3: Cross multiply
    28,041.76x = 42,057.68 × 9,319.92
  4. Step 4: Simplify right side
    28,041.76x = 391,974,212.99
  5. Step 5: Solve for x
    x = 391,974,212.99/28,041.76
  6. Step 6: Final answer
    x = 13,978.23

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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.