Home / 31,612.18-47,420.70-9,423.82

Finding the Fourth Proportional to 31,612.18, 47,420.70 and 9,423.82

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Solution

The fourth proportional to 31,612.18, 47,420.70 and 9,423.82 is: 14,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,612.18 : 47,420.70 = 9,423.82 : x
  2. Step 2: Convert to fraction form
    31,612.18/47,420.70 = 9,423.82/x
  3. Step 3: Cross multiply
    31,612.18x = 47,420.70 × 9,423.82
  4. Step 4: Simplify right side
    31,612.18x = 446,884,141.07
  5. Step 5: Solve for x
    x = 446,884,141.07/31,612.18
  6. Step 6: Final answer
    x = 14,136.45

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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.