Home / 38,309.60-57,341.28-20,495.81

Finding the Fourth Proportional to 38,309.60, 57,341.28 and 20,495.81

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Solution

The fourth proportional to 38,309.60, 57,341.28 and 20,495.81 is: 30,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,309.60 : 57,341.28 = 20,495.81 : x
  2. Step 2: Convert to fraction form
    38,309.60/57,341.28 = 20,495.81/x
  3. Step 3: Cross multiply
    38,309.60x = 57,341.28 × 20,495.81
  4. Step 4: Simplify right side
    38,309.60x = 1,175,255,980.04
  5. Step 5: Solve for x
    x = 1,175,255,980.04/38,309.60
  6. Step 6: Final answer
    x = 30,677.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.