Home / 45,280.19-67,865.19-18,954.11

Finding the Fourth Proportional to 45,280.19, 67,865.19 and 18,954.11

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Solution

The fourth proportional to 45,280.19, 67,865.19 and 18,954.11 is: 28,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,280.19 : 67,865.19 = 18,954.11 : x
  2. Step 2: Convert to fraction form
    45,280.19/67,865.19 = 18,954.11/x
  3. Step 3: Cross multiply
    45,280.19x = 67,865.19 × 18,954.11
  4. Step 4: Simplify right side
    45,280.19x = 1,286,323,937.10
  5. Step 5: Solve for x
    x = 1,286,323,937.10/45,280.19
  6. Step 6: Final answer
    x = 28,408.10

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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.