Home / 21,327.93-29,432.03-12,376.17

Finding the Fourth Proportional to 21,327.93, 29,432.03 and 12,376.17

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Solution

The fourth proportional to 21,327.93, 29,432.03 and 12,376.17 is: 17,078.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.93 : 29,432.03 = 12,376.17 : x
  2. Step 2: Convert to fraction form
    21,327.93/29,432.03 = 12,376.17/x
  3. Step 3: Cross multiply
    21,327.93x = 29,432.03 × 12,376.17
  4. Step 4: Simplify right side
    21,327.93x = 364,255,744.84
  5. Step 5: Solve for x
    x = 364,255,744.84/21,327.93
  6. Step 6: Final answer
    x = 17,078.81

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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.