Home / 36,438.85-54,658.28-28,130.99

Finding the Fourth Proportional to 36,438.85, 54,658.28 and 28,130.99

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Solution

The fourth proportional to 36,438.85, 54,658.28 and 28,130.99 is: 42,196.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,438.85 : 54,658.28 = 28,130.99 : x
  2. Step 2: Convert to fraction form
    36,438.85/54,658.28 = 28,130.99/x
  3. Step 3: Cross multiply
    36,438.85x = 54,658.28 × 28,130.99
  4. Step 4: Simplify right side
    36,438.85x = 1,537,591,528.10
  5. Step 5: Solve for x
    x = 1,537,591,528.10/36,438.85
  6. Step 6: Final answer
    x = 42,196.49

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Similar ratio
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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.