Home / 31,818.90-43,889.91-19,548.93

Finding the Fourth Proportional to 31,818.90, 43,889.91 and 19,548.93

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Solution

The fourth proportional to 31,818.90, 43,889.91 and 19,548.93 is: 26,965.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,818.90 : 43,889.91 = 19,548.93 : x
  2. Step 2: Convert to fraction form
    31,818.90/43,889.91 = 19,548.93/x
  3. Step 3: Cross multiply
    31,818.90x = 43,889.91 × 19,548.93
  4. Step 4: Simplify right side
    31,818.90x = 858,000,778.30
  5. Step 5: Solve for x
    x = 858,000,778.30/31,818.90
  6. Step 6: Final answer
    x = 26,965.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.