Home / 43,098.68-64,648.20-11,931.68

Finding the Fourth Proportional to 43,098.68, 64,648.20 and 11,931.68

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Solution

The fourth proportional to 43,098.68, 64,648.20 and 11,931.68 is: 17,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,098.68 : 64,648.20 = 11,931.68 : x
  2. Step 2: Convert to fraction form
    43,098.68/64,648.20 = 11,931.68/x
  3. Step 3: Cross multiply
    43,098.68x = 64,648.20 × 11,931.68
  4. Step 4: Simplify right side
    43,098.68x = 771,361,634.98
  5. Step 5: Solve for x
    x = 771,361,634.98/43,098.68
  6. Step 6: Final answer
    x = 17,897.57

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1.5x scale

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.