Home / 47,845.68-66,019.98-28,721.40

Finding the Fourth Proportional to 47,845.68, 66,019.98 and 28,721.40

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Solution

The fourth proportional to 47,845.68, 66,019.98 and 28,721.40 is: 39,631.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,845.68 : 66,019.98 = 28,721.40 : x
  2. Step 2: Convert to fraction form
    47,845.68/66,019.98 = 28,721.40/x
  3. Step 3: Cross multiply
    47,845.68x = 66,019.98 × 28,721.40
  4. Step 4: Simplify right side
    47,845.68x = 1,896,186,253.57
  5. Step 5: Solve for x
    x = 1,896,186,253.57/47,845.68
  6. Step 6: Final answer
    x = 39,631.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.