Home / 20,528.80-28,291.02-14,853.94

Finding the Fourth Proportional to 20,528.80, 28,291.02 and 14,853.94

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Solution

The fourth proportional to 20,528.80, 28,291.02 and 14,853.94 is: 20,470.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.80 : 28,291.02 = 14,853.94 : x
  2. Step 2: Convert to fraction form
    20,528.80/28,291.02 = 14,853.94/x
  3. Step 3: Cross multiply
    20,528.80x = 28,291.02 × 14,853.94
  4. Step 4: Simplify right side
    20,528.80x = 420,233,113.62
  5. Step 5: Solve for x
    x = 420,233,113.62/20,528.80
  6. Step 6: Final answer
    x = 20,470.42

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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.