Home / 20,513.76-30,746.34-9,411.18

Finding the Fourth Proportional to 20,513.76, 30,746.34 and 9,411.18

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Solution

The fourth proportional to 20,513.76, 30,746.34 and 9,411.18 is: 14,105.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513.76 : 30,746.34 = 9,411.18 : x
  2. Step 2: Convert to fraction form
    20,513.76/30,746.34 = 9,411.18/x
  3. Step 3: Cross multiply
    20,513.76x = 30,746.34 × 9,411.18
  4. Step 4: Simplify right side
    20,513.76x = 289,359,340.08
  5. Step 5: Solve for x
    x = 289,359,340.08/20,513.76
  6. Step 6: Final answer
    x = 14,105.62

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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.