Home / 18,821.42-28,209.34-10,492.59

Finding the Fourth Proportional to 18,821.42, 28,209.34 and 10,492.59

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Solution

The fourth proportional to 18,821.42, 28,209.34 and 10,492.59 is: 15,726.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.42 : 28,209.34 = 10,492.59 : x
  2. Step 2: Convert to fraction form
    18,821.42/28,209.34 = 10,492.59/x
  3. Step 3: Cross multiply
    18,821.42x = 28,209.34 × 10,492.59
  4. Step 4: Simplify right side
    18,821.42x = 295,989,038.79
  5. Step 5: Solve for x
    x = 295,989,038.79/18,821.42
  6. Step 6: Final answer
    x = 15,726.18

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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.