Home / 31,681.72-43,722.75-18,254.76

Finding the Fourth Proportional to 31,681.72, 43,722.75 and 18,254.76

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Solution

The fourth proportional to 31,681.72, 43,722.75 and 18,254.76 is: 25,192.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681.72 : 43,722.75 = 18,254.76 : x
  2. Step 2: Convert to fraction form
    31,681.72/43,722.75 = 18,254.76/x
  3. Step 3: Cross multiply
    31,681.72x = 43,722.75 × 18,254.76
  4. Step 4: Simplify right side
    31,681.72x = 798,148,307.79
  5. Step 5: Solve for x
    x = 798,148,307.79/31,681.72
  6. Step 6: Final answer
    x = 25,192.71

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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.