Home / 20,326.34-28,053.53-12,773.70

Finding the Fourth Proportional to 20,326.34, 28,053.53 and 12,773.70

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Solution

The fourth proportional to 20,326.34, 28,053.53 and 12,773.70 is: 17,629.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.34 : 28,053.53 = 12,773.70 : x
  2. Step 2: Convert to fraction form
    20,326.34/28,053.53 = 12,773.70/x
  3. Step 3: Cross multiply
    20,326.34x = 28,053.53 × 12,773.70
  4. Step 4: Simplify right side
    20,326.34x = 358,347,306.03
  5. Step 5: Solve for x
    x = 358,347,306.03/20,326.34
  6. Step 6: Final answer
    x = 17,629.70

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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.