Home / 34,920.81-48,182.32-20,581.21

Finding the Fourth Proportional to 34,920.81, 48,182.32 and 20,581.21

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Solution

The fourth proportional to 34,920.81, 48,182.32 and 20,581.21 is: 28,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,920.81 : 48,182.32 = 20,581.21 : x
  2. Step 2: Convert to fraction form
    34,920.81/48,182.32 = 20,581.21/x
  3. Step 3: Cross multiply
    34,920.81x = 48,182.32 × 20,581.21
  4. Step 4: Simplify right side
    34,920.81x = 991,650,446.21
  5. Step 5: Solve for x
    x = 991,650,446.21/34,920.81
  6. Step 6: Final answer
    x = 28,397.12

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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.