Home / 20,910.53-28,816.65-20,526.18

Finding the Fourth Proportional to 20,910.53, 28,816.65 and 20,526.18

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Solution

The fourth proportional to 20,910.53, 28,816.65 and 20,526.18 is: 28,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,910.53 : 28,816.65 = 20,526.18 : x
  2. Step 2: Convert to fraction form
    20,910.53/28,816.65 = 20,526.18/x
  3. Step 3: Cross multiply
    20,910.53x = 28,816.65 × 20,526.18
  4. Step 4: Simplify right side
    20,910.53x = 591,495,642.27
  5. Step 5: Solve for x
    x = 591,495,642.27/20,910.53
  6. Step 6: Final answer
    x = 28,286.98

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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.