Home / 28,470.24-42,706.32-7,693.92

Finding the Fourth Proportional to 28,470.24, 42,706.32 and 7,693.92

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Solution

The fourth proportional to 28,470.24, 42,706.32 and 7,693.92 is: 11,541.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.24 : 42,706.32 = 7,693.92 : x
  2. Step 2: Convert to fraction form
    28,470.24/42,706.32 = 7,693.92/x
  3. Step 3: Cross multiply
    28,470.24x = 42,706.32 × 7,693.92
  4. Step 4: Simplify right side
    28,470.24x = 328,579,009.57
  5. Step 5: Solve for x
    x = 328,579,009.57/28,470.24
  6. Step 6: Final answer
    x = 11,541.14

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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.