Home / 31,916.84-47,856.42-13,175.87

Finding the Fourth Proportional to 31,916.84, 47,856.42 and 13,175.87

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Solution

The fourth proportional to 31,916.84, 47,856.42 and 13,175.87 is: 19,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,916.84 : 47,856.42 = 13,175.87 : x
  2. Step 2: Convert to fraction form
    31,916.84/47,856.42 = 13,175.87/x
  3. Step 3: Cross multiply
    31,916.84x = 47,856.42 × 13,175.87
  4. Step 4: Simplify right side
    31,916.84x = 630,549,729.30
  5. Step 5: Solve for x
    x = 630,549,729.30/31,916.84
  6. Step 6: Final answer
    x = 19,756.02

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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.