Home / 38,341.69-52,912.70-20,880.18

Finding the Fourth Proportional to 38,341.69, 52,912.70 and 20,880.18

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Solution

The fourth proportional to 38,341.69, 52,912.70 and 20,880.18 is: 28,815.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,341.69 : 52,912.70 = 20,880.18 : x
  2. Step 2: Convert to fraction form
    38,341.69/52,912.70 = 20,880.18/x
  3. Step 3: Cross multiply
    38,341.69x = 52,912.70 × 20,880.18
  4. Step 4: Simplify right side
    38,341.69x = 1,104,826,674.19
  5. Step 5: Solve for x
    x = 1,104,826,674.19/38,341.69
  6. Step 6: Final answer
    x = 28,815.29

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Double scale
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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.