Home / 28,318.23-42,482.79-15,185.28

Finding the Fourth Proportional to 28,318.23, 42,482.79 and 15,185.28

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Solution

The fourth proportional to 28,318.23, 42,482.79 and 15,185.28 is: 22,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.23 : 42,482.79 = 15,185.28 : x
  2. Step 2: Convert to fraction form
    28,318.23/42,482.79 = 15,185.28/x
  3. Step 3: Cross multiply
    28,318.23x = 42,482.79 × 15,185.28
  4. Step 4: Simplify right side
    28,318.23x = 645,113,061.33
  5. Step 5: Solve for x
    x = 645,113,061.33/28,318.23
  6. Step 6: Final answer
    x = 22,780.84

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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.