Home / 31,830.24-47,741.04-8,454.72

Finding the Fourth Proportional to 31,830.24, 47,741.04 and 8,454.72

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Solution

The fourth proportional to 31,830.24, 47,741.04 and 8,454.72 is: 12,680.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,830.24 : 47,741.04 = 8,454.72 : x
  2. Step 2: Convert to fraction form
    31,830.24/47,741.04 = 8,454.72/x
  3. Step 3: Cross multiply
    31,830.24x = 47,741.04 × 8,454.72
  4. Step 4: Simplify right side
    31,830.24x = 403,637,125.71
  5. Step 5: Solve for x
    x = 403,637,125.71/31,830.24
  6. Step 6: Final answer
    x = 12,680.93

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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.