Home / 21,487.48-29,652.26-11,926.81

Finding the Fourth Proportional to 21,487.48, 29,652.26 and 11,926.81

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Solution

The fourth proportional to 21,487.48, 29,652.26 and 11,926.81 is: 16,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.48 : 29,652.26 = 11,926.81 : x
  2. Step 2: Convert to fraction form
    21,487.48/29,652.26 = 11,926.81/x
  3. Step 3: Cross multiply
    21,487.48x = 29,652.26 × 11,926.81
  4. Step 4: Simplify right side
    21,487.48x = 353,656,900.91
  5. Step 5: Solve for x
    x = 353,656,900.91/21,487.48
  6. Step 6: Final answer
    x = 16,458.74

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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.