Home / 20,323.28-28,025.52-12,357.74

Finding the Fourth Proportional to 20,323.28, 28,025.52 and 12,357.74

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Solution

The fourth proportional to 20,323.28, 28,025.52 and 12,357.74 is: 17,041.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.28 : 28,025.52 = 12,357.74 : x
  2. Step 2: Convert to fraction form
    20,323.28/28,025.52 = 12,357.74/x
  3. Step 3: Cross multiply
    20,323.28x = 28,025.52 × 12,357.74
  4. Step 4: Simplify right side
    20,323.28x = 346,332,089.52
  5. Step 5: Solve for x
    x = 346,332,089.52/20,323.28
  6. Step 6: Final answer
    x = 17,041.15

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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.