Home / 20,360.81-30,542.13-5,569.40

Finding the Fourth Proportional to 20,360.81, 30,542.13 and 5,569.40

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Solution

The fourth proportional to 20,360.81, 30,542.13 and 5,569.40 is: 8,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.81 : 30,542.13 = 5,569.40 : x
  2. Step 2: Convert to fraction form
    20,360.81/30,542.13 = 5,569.40/x
  3. Step 3: Cross multiply
    20,360.81x = 30,542.13 × 5,569.40
  4. Step 4: Simplify right side
    20,360.81x = 170,101,338.82
  5. Step 5: Solve for x
    x = 170,101,338.82/20,360.81
  6. Step 6: Final answer
    x = 8,354.35

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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.