Home / 47,128.13-70,690.35-15,963.38

Finding the Fourth Proportional to 47,128.13, 70,690.35 and 15,963.38

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Solution

The fourth proportional to 47,128.13, 70,690.35 and 15,963.38 is: 23,944.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.13 : 70,690.35 = 15,963.38 : x
  2. Step 2: Convert to fraction form
    47,128.13/70,690.35 = 15,963.38/x
  3. Step 3: Cross multiply
    47,128.13x = 70,690.35 × 15,963.38
  4. Step 4: Simplify right side
    47,128.13x = 1,128,456,919.38
  5. Step 5: Solve for x
    x = 1,128,456,919.38/47,128.13
  6. Step 6: Final answer
    x = 23,944.45

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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.