Home / 22,800.18-31,465.84-12,730.60

Finding the Fourth Proportional to 22,800.18, 31,465.84 and 12,730.60

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Solution

The fourth proportional to 22,800.18, 31,465.84 and 12,730.60 is: 17,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,800.18 : 31,465.84 = 12,730.60 : x
  2. Step 2: Convert to fraction form
    22,800.18/31,465.84 = 12,730.60/x
  3. Step 3: Cross multiply
    22,800.18x = 31,465.84 × 12,730.60
  4. Step 4: Simplify right side
    22,800.18x = 400,579,022.70
  5. Step 5: Solve for x
    x = 400,579,022.70/22,800.18
  6. Step 6: Final answer
    x = 17,569.12

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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.