Home / 31,790.08-47,679.54-17,764.12

Finding the Fourth Proportional to 31,790.08, 47,679.54 and 17,764.12

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Solution

The fourth proportional to 31,790.08, 47,679.54 and 17,764.12 is: 26,643.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,790.08 : 47,679.54 = 17,764.12 : x
  2. Step 2: Convert to fraction form
    31,790.08/47,679.54 = 17,764.12/x
  3. Step 3: Cross multiply
    31,790.08x = 47,679.54 × 17,764.12
  4. Step 4: Simplify right side
    31,790.08x = 846,985,070.10
  5. Step 5: Solve for x
    x = 846,985,070.10/31,790.08
  6. Step 6: Final answer
    x = 26,643.06

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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.