Home / 38,708.40-58,062.60-12,415.80

Finding the Fourth Proportional to 38,708.40, 58,062.60 and 12,415.80

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Solution

The fourth proportional to 38,708.40, 58,062.60 and 12,415.80 is: 18,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,708.40 : 58,062.60 = 12,415.80 : x
  2. Step 2: Convert to fraction form
    38,708.40/58,062.60 = 12,415.80/x
  3. Step 3: Cross multiply
    38,708.40x = 58,062.60 × 12,415.80
  4. Step 4: Simplify right side
    38,708.40x = 720,893,629.08
  5. Step 5: Solve for x
    x = 720,893,629.08/38,708.40
  6. Step 6: Final answer
    x = 18,623.70

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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.