Home / 20,838.14-28,752.17-12,342.92

Finding the Fourth Proportional to 20,838.14, 28,752.17 and 12,342.92

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Solution

The fourth proportional to 20,838.14, 28,752.17 and 12,342.92 is: 17,030.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.14 : 28,752.17 = 12,342.92 : x
  2. Step 2: Convert to fraction form
    20,838.14/28,752.17 = 12,342.92/x
  3. Step 3: Cross multiply
    20,838.14x = 28,752.17 × 12,342.92
  4. Step 4: Simplify right side
    20,838.14x = 354,885,528.66
  5. Step 5: Solve for x
    x = 354,885,528.66/20,838.14
  6. Step 6: Final answer
    x = 17,030.58

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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.