Home / 31,671.78-47,507.70-10,895.28

Finding the Fourth Proportional to 31,671.78, 47,507.70 and 10,895.28

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Solution

The fourth proportional to 31,671.78, 47,507.70 and 10,895.28 is: 16,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,671.78 : 47,507.70 = 10,895.28 : x
  2. Step 2: Convert to fraction form
    31,671.78/47,507.70 = 10,895.28/x
  3. Step 3: Cross multiply
    31,671.78x = 47,507.70 × 10,895.28
  4. Step 4: Simplify right side
    31,671.78x = 517,609,693.66
  5. Step 5: Solve for x
    x = 517,609,693.66/31,671.78
  6. Step 6: Final answer
    x = 16,342.93

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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.