Home / 28,532.15-42,775.04-11,904.57

Finding the Fourth Proportional to 28,532.15, 42,775.04 and 11,904.57

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Solution

The fourth proportional to 28,532.15, 42,775.04 and 11,904.57 is: 17,847.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.15 : 42,775.04 = 11,904.57 : x
  2. Step 2: Convert to fraction form
    28,532.15/42,775.04 = 11,904.57/x
  3. Step 3: Cross multiply
    28,532.15x = 42,775.04 × 11,904.57
  4. Step 4: Simplify right side
    28,532.15x = 509,218,457.93
  5. Step 5: Solve for x
    x = 509,218,457.93/28,532.15
  6. Step 6: Final answer
    x = 17,847.18

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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.