Home / 20,570.52-28,387.26-11,617.58

Finding the Fourth Proportional to 20,570.52, 28,387.26 and 11,617.58

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Solution

The fourth proportional to 20,570.52, 28,387.26 and 11,617.58 is: 16,032.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,570.52 : 28,387.26 = 11,617.58 : x
  2. Step 2: Convert to fraction form
    20,570.52/28,387.26 = 11,617.58/x
  3. Step 3: Cross multiply
    20,570.52x = 28,387.26 × 11,617.58
  4. Step 4: Simplify right side
    20,570.52x = 329,791,264.03
  5. Step 5: Solve for x
    x = 329,791,264.03/20,570.52
  6. Step 6: Final answer
    x = 16,032.23

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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.