Home / 18,798.87-28,032.35-18,630.15

Finding the Fourth Proportional to 18,798.87, 28,032.35 and 18,630.15

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Solution

The fourth proportional to 18,798.87, 28,032.35 and 18,630.15 is: 27,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,798.87 : 28,032.35 = 18,630.15 : x
  2. Step 2: Convert to fraction form
    18,798.87/28,032.35 = 18,630.15/x
  3. Step 3: Cross multiply
    18,798.87x = 28,032.35 × 18,630.15
  4. Step 4: Simplify right side
    18,798.87x = 522,246,792.20
  5. Step 5: Solve for x
    x = 522,246,792.20/18,798.87
  6. Step 6: Final answer
    x = 27,780.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.