Home / 20,549.98-28,329.51-13,823.74

Finding the Fourth Proportional to 20,549.98, 28,329.51 and 13,823.74

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Solution

The fourth proportional to 20,549.98, 28,329.51 and 13,823.74 is: 19,056.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.98 : 28,329.51 = 13,823.74 : x
  2. Step 2: Convert to fraction form
    20,549.98/28,329.51 = 13,823.74/x
  3. Step 3: Cross multiply
    20,549.98x = 28,329.51 × 13,823.74
  4. Step 4: Simplify right side
    20,549.98x = 391,619,780.57
  5. Step 5: Solve for x
    x = 391,619,780.57/20,549.98
  6. Step 6: Final answer
    x = 19,056.94

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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.