Home / 20,934.02-28,888.16-11,502.02

Finding the Fourth Proportional to 20,934.02, 28,888.16 and 11,502.02

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Solution

The fourth proportional to 20,934.02, 28,888.16 and 11,502.02 is: 15,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.02 : 28,888.16 = 11,502.02 : x
  2. Step 2: Convert to fraction form
    20,934.02/28,888.16 = 11,502.02/x
  3. Step 3: Cross multiply
    20,934.02x = 28,888.16 × 11,502.02
  4. Step 4: Simplify right side
    20,934.02x = 332,272,194.08
  5. Step 5: Solve for x
    x = 332,272,194.08/20,934.02
  6. Step 6: Final answer
    x = 15,872.35

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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.