Home / 31,655.82-47,466.20-12,948.99

Finding the Fourth Proportional to 31,655.82, 47,466.20 and 12,948.99

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Solution

The fourth proportional to 31,655.82, 47,466.20 and 12,948.99 is: 19,416.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,655.82 : 47,466.20 = 12,948.99 : x
  2. Step 2: Convert to fraction form
    31,655.82/47,466.20 = 12,948.99/x
  3. Step 3: Cross multiply
    31,655.82x = 47,466.20 × 12,948.99
  4. Step 4: Simplify right side
    31,655.82x = 614,639,349.14
  5. Step 5: Solve for x
    x = 614,639,349.14/31,655.82
  6. Step 6: Final answer
    x = 19,416.31

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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.