Home / 20,300.60-30,417.96-10,426.16

Finding the Fourth Proportional to 20,300.60, 30,417.96 and 10,426.16

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Solution

The fourth proportional to 20,300.60, 30,417.96 and 10,426.16 is: 15,622.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300.60 : 30,417.96 = 10,426.16 : x
  2. Step 2: Convert to fraction form
    20,300.60/30,417.96 = 10,426.16/x
  3. Step 3: Cross multiply
    20,300.60x = 30,417.96 × 10,426.16
  4. Step 4: Simplify right side
    20,300.60x = 317,142,517.83
  5. Step 5: Solve for x
    x = 317,142,517.83/20,300.60
  6. Step 6: Final answer
    x = 15,622.32

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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.