Home / 39,152.40-58,728.60-28,093.20

Finding the Fourth Proportional to 39,152.40, 58,728.60 and 28,093.20

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Solution

The fourth proportional to 39,152.40, 58,728.60 and 28,093.20 is: 42,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,152.40 : 58,728.60 = 28,093.20 : x
  2. Step 2: Convert to fraction form
    39,152.40/58,728.60 = 28,093.20/x
  3. Step 3: Cross multiply
    39,152.40x = 58,728.60 × 28,093.20
  4. Step 4: Simplify right side
    39,152.40x = 1,649,874,305.52
  5. Step 5: Solve for x
    x = 1,649,874,305.52/39,152.40
  6. Step 6: Final answer
    x = 42,139.80

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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.