Home / 32,143.19-44,347.28-20,821.36

Finding the Fourth Proportional to 32,143.19, 44,347.28 and 20,821.36

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Solution

The fourth proportional to 32,143.19, 44,347.28 and 20,821.36 is: 28,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,143.19 : 44,347.28 = 20,821.36 : x
  2. Step 2: Convert to fraction form
    32,143.19/44,347.28 = 20,821.36/x
  3. Step 3: Cross multiply
    32,143.19x = 44,347.28 × 20,821.36
  4. Step 4: Simplify right side
    32,143.19x = 923,370,791.92
  5. Step 5: Solve for x
    x = 923,370,791.92/32,143.19
  6. Step 6: Final answer
    x = 28,726.80

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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.