Home / 20,543.25-28,347.24-11,590.23

Finding the Fourth Proportional to 20,543.25, 28,347.24 and 11,590.23

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Solution

The fourth proportional to 20,543.25, 28,347.24 and 11,590.23 is: 15,993.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.25 : 28,347.24 = 11,590.23 : x
  2. Step 2: Convert to fraction form
    20,543.25/28,347.24 = 11,590.23/x
  3. Step 3: Cross multiply
    20,543.25x = 28,347.24 × 11,590.23
  4. Step 4: Simplify right side
    20,543.25x = 328,551,031.47
  5. Step 5: Solve for x
    x = 328,551,031.47/20,543.25
  6. Step 6: Final answer
    x = 15,993.14

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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.