Home / 36,155.60-54,233.40-20,603.60

Finding the Fourth Proportional to 36,155.60, 54,233.40 and 20,603.60

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Solution

The fourth proportional to 36,155.60, 54,233.40 and 20,603.60 is: 30,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,155.60 : 54,233.40 = 20,603.60 : x
  2. Step 2: Convert to fraction form
    36,155.60/54,233.40 = 20,603.60/x
  3. Step 3: Cross multiply
    36,155.60x = 54,233.40 × 20,603.60
  4. Step 4: Simplify right side
    36,155.60x = 1,117,403,280.24
  5. Step 5: Solve for x
    x = 1,117,403,280.24/36,155.60
  6. Step 6: Final answer
    x = 30,905.40

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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.