Home / 20,360.50-28,098.29-11,408.07

Finding the Fourth Proportional to 20,360.50, 28,098.29 and 11,408.07

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Solution

The fourth proportional to 20,360.50, 28,098.29 and 11,408.07 is: 15,743.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.50 : 28,098.29 = 11,408.07 : x
  2. Step 2: Convert to fraction form
    20,360.50/28,098.29 = 11,408.07/x
  3. Step 3: Cross multiply
    20,360.50x = 28,098.29 × 11,408.07
  4. Step 4: Simplify right side
    20,360.50x = 320,547,393.09
  5. Step 5: Solve for x
    x = 320,547,393.09/20,360.50
  6. Step 6: Final answer
    x = 15,743.59

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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.