Home / 17,920.78-24,695.43-15,088.60

Finding the Fourth Proportional to 17,920.78, 24,695.43 and 15,088.60

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Solution

The fourth proportional to 17,920.78, 24,695.43 and 15,088.60 is: 20,792.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.78 : 24,695.43 = 15,088.60 : x
  2. Step 2: Convert to fraction form
    17,920.78/24,695.43 = 15,088.60/x
  3. Step 3: Cross multiply
    17,920.78x = 24,695.43 × 15,088.60
  4. Step 4: Simplify right side
    17,920.78x = 372,619,465.10
  5. Step 5: Solve for x
    x = 372,619,465.10/17,920.78
  6. Step 6: Final answer
    x = 20,792.59

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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.