Home / 31,938.78-47,914.85-10,877.16

Finding the Fourth Proportional to 31,938.78, 47,914.85 and 10,877.16

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Solution

The fourth proportional to 31,938.78, 47,914.85 and 10,877.16 is: 16,318.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938.78 : 47,914.85 = 10,877.16 : x
  2. Step 2: Convert to fraction form
    31,938.78/47,914.85 = 10,877.16/x
  3. Step 3: Cross multiply
    31,938.78x = 47,914.85 × 10,877.16
  4. Step 4: Simplify right side
    31,938.78x = 521,177,489.83
  5. Step 5: Solve for x
    x = 521,177,489.83/31,938.78
  6. Step 6: Final answer
    x = 16,318.01

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1.5x scale

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.