Home / 20,335.99-28,062.14-12,377.34

Finding the Fourth Proportional to 20,335.99, 28,062.14 and 12,377.34

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Solution

The fourth proportional to 20,335.99, 28,062.14 and 12,377.34 is: 17,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.99 : 28,062.14 = 12,377.34 : x
  2. Step 2: Convert to fraction form
    20,335.99/28,062.14 = 12,377.34/x
  3. Step 3: Cross multiply
    20,335.99x = 28,062.14 × 12,377.34
  4. Step 4: Simplify right side
    20,335.99x = 347,334,647.91
  5. Step 5: Solve for x
    x = 347,334,647.91/20,335.99
  6. Step 6: Final answer
    x = 17,079.80

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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.