Home / 21,487.69-29,652.44-11,927.55

Finding the Fourth Proportional to 21,487.69, 29,652.44 and 11,927.55

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Solution

The fourth proportional to 21,487.69, 29,652.44 and 11,927.55 is: 16,459.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.69 : 29,652.44 = 11,927.55 : x
  2. Step 2: Convert to fraction form
    21,487.69/29,652.44 = 11,927.55/x
  3. Step 3: Cross multiply
    21,487.69x = 29,652.44 × 11,927.55
  4. Step 4: Simplify right side
    21,487.69x = 353,680,960.72
  5. Step 5: Solve for x
    x = 353,680,960.72/21,487.69
  6. Step 6: Final answer
    x = 16,459.70

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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.