Home / 20,340.10-30,510.15-13,364.20

Finding the Fourth Proportional to 20,340.10, 30,510.15 and 13,364.20

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Solution

The fourth proportional to 20,340.10, 30,510.15 and 13,364.20 is: 20,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340.10 : 30,510.15 = 13,364.20 : x
  2. Step 2: Convert to fraction form
    20,340.10/30,510.15 = 13,364.20/x
  3. Step 3: Cross multiply
    20,340.10x = 30,510.15 × 13,364.20
  4. Step 4: Simplify right side
    20,340.10x = 407,743,746.63
  5. Step 5: Solve for x
    x = 407,743,746.63/20,340.10
  6. Step 6: Final answer
    x = 20,046.30

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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.