Home / 21,937.15-30,273.98-12,376.86

Finding the Fourth Proportional to 21,937.15, 30,273.98 and 12,376.86

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Solution

The fourth proportional to 21,937.15, 30,273.98 and 12,376.86 is: 17,080.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,937.15 : 30,273.98 = 12,376.86 : x
  2. Step 2: Convert to fraction form
    21,937.15/30,273.98 = 12,376.86/x
  3. Step 3: Cross multiply
    21,937.15x = 30,273.98 × 12,376.86
  4. Step 4: Simplify right side
    21,937.15x = 374,696,812.10
  5. Step 5: Solve for x
    x = 374,696,812.10/21,937.15
  6. Step 6: Final answer
    x = 17,080.47

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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.