Home / 22,405.20-33,640.20-15,860.40

Finding the Fourth Proportional to 22,405.20, 33,640.20 and 15,860.40

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Solution

The fourth proportional to 22,405.20, 33,640.20 and 15,860.40 is: 23,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,405.20 : 33,640.20 = 15,860.40 : x
  2. Step 2: Convert to fraction form
    22,405.20/33,640.20 = 15,860.40/x
  3. Step 3: Cross multiply
    22,405.20x = 33,640.20 × 15,860.40
  4. Step 4: Simplify right side
    22,405.20x = 533,547,028.08
  5. Step 5: Solve for x
    x = 533,547,028.08/22,405.20
  6. Step 6: Final answer
    x = 23,813.54

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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.