Home / 15,220.80-22,831.20-9,358.40

Finding the Fourth Proportional to 15,220.80, 22,831.20 and 9,358.40

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Solution

The fourth proportional to 15,220.80, 22,831.20 and 9,358.40 is: 14,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,220.80 : 22,831.20 = 9,358.40 : x
  2. Step 2: Convert to fraction form
    15,220.80/22,831.20 = 9,358.40/x
  3. Step 3: Cross multiply
    15,220.80x = 22,831.20 × 9,358.40
  4. Step 4: Simplify right side
    15,220.80x = 213,663,502.08
  5. Step 5: Solve for x
    x = 213,663,502.08/15,220.80
  6. Step 6: Final answer
    x = 14,037.60

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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.