Home / 22,803.20-31,465.36-12,730.18

Finding the Fourth Proportional to 22,803.20, 31,465.36 and 12,730.18

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Solution

The fourth proportional to 22,803.20, 31,465.36 and 12,730.18 is: 17,565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,803.20 : 31,465.36 = 12,730.18 : x
  2. Step 2: Convert to fraction form
    22,803.20/31,465.36 = 12,730.18/x
  3. Step 3: Cross multiply
    22,803.20x = 31,465.36 × 12,730.18
  4. Step 4: Simplify right side
    22,803.20x = 400,559,696.56
  5. Step 5: Solve for x
    x = 400,559,696.56/22,803.20
  6. Step 6: Final answer
    x = 17,565.94

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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.