Home / 28,335.96-42,505.76-9,618.89

Finding the Fourth Proportional to 28,335.96, 42,505.76 and 9,618.89

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Solution

The fourth proportional to 28,335.96, 42,505.76 and 9,618.89 is: 14,428.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.96 : 42,505.76 = 9,618.89 : x
  2. Step 2: Convert to fraction form
    28,335.96/42,505.76 = 9,618.89/x
  3. Step 3: Cross multiply
    28,335.96x = 42,505.76 × 9,618.89
  4. Step 4: Simplify right side
    28,335.96x = 408,858,041.32
  5. Step 5: Solve for x
    x = 408,858,041.32/28,335.96
  6. Step 6: Final answer
    x = 14,428.95

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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.