Home / 20,340.60-30,510.90-13,364.70

Finding the Fourth Proportional to 20,340.60, 30,510.90 and 13,364.70

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Solution

The fourth proportional to 20,340.60, 30,510.90 and 13,364.70 is: 20,047.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340.60 : 30,510.90 = 13,364.70 : x
  2. Step 2: Convert to fraction form
    20,340.60/30,510.90 = 13,364.70/x
  3. Step 3: Cross multiply
    20,340.60x = 30,510.90 × 13,364.70
  4. Step 4: Simplify right side
    20,340.60x = 407,769,025.23
  5. Step 5: Solve for x
    x = 407,769,025.23/20,340.60
  6. Step 6: Final answer
    x = 20,047.05

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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.