Home / 31,916.18-47,877.45-12,211.31

Finding the Fourth Proportional to 31,916.18, 47,877.45 and 12,211.31

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Solution

The fourth proportional to 31,916.18, 47,877.45 and 12,211.31 is: 18,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,916.18 : 47,877.45 = 12,211.31 : x
  2. Step 2: Convert to fraction form
    31,916.18/47,877.45 = 12,211.31/x
  3. Step 3: Cross multiply
    31,916.18x = 47,877.45 × 12,211.31
  4. Step 4: Simplify right side
    31,916.18x = 584,646,457.86
  5. Step 5: Solve for x
    x = 584,646,457.86/31,916.18
  6. Step 6: Final answer
    x = 18,318.18

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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.