Home / 20,752.86-28,604.80-14,705.13

Finding the Fourth Proportional to 20,752.86, 28,604.80 and 14,705.13

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Solution

The fourth proportional to 20,752.86, 28,604.80 and 14,705.13 is: 20,268.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.86 : 28,604.80 = 14,705.13 : x
  2. Step 2: Convert to fraction form
    20,752.86/28,604.80 = 14,705.13/x
  3. Step 3: Cross multiply
    20,752.86x = 28,604.80 × 14,705.13
  4. Step 4: Simplify right side
    20,752.86x = 420,637,302.62
  5. Step 5: Solve for x
    x = 420,637,302.62/20,752.86
  6. Step 6: Final answer
    x = 20,268.88

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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.