Home / 38,941.20-53,705.76-32,920.80

Finding the Fourth Proportional to 38,941.20, 53,705.76 and 32,920.80

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Solution

The fourth proportional to 38,941.20, 53,705.76 and 32,920.80 is: 45,402.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,941.20 : 53,705.76 = 32,920.80 : x
  2. Step 2: Convert to fraction form
    38,941.20/53,705.76 = 32,920.80/x
  3. Step 3: Cross multiply
    38,941.20x = 53,705.76 × 32,920.80
  4. Step 4: Simplify right side
    38,941.20x = 1,768,036,583.81
  5. Step 5: Solve for x
    x = 1,768,036,583.81/38,941.20
  6. Step 6: Final answer
    x = 45,402.72

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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.