Home / 20,501.19-28,292.31-11,548.86

Finding the Fourth Proportional to 20,501.19, 28,292.31 and 11,548.86

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Solution

The fourth proportional to 20,501.19, 28,292.31 and 11,548.86 is: 15,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.19 : 28,292.31 = 11,548.86 : x
  2. Step 2: Convert to fraction form
    20,501.19/28,292.31 = 11,548.86/x
  3. Step 3: Cross multiply
    20,501.19x = 28,292.31 × 11,548.86
  4. Step 4: Simplify right side
    20,501.19x = 326,743,927.27
  5. Step 5: Solve for x
    x = 326,743,927.27/20,501.19
  6. Step 6: Final answer
    x = 15,937.80

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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.