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Finding the Fourth Proportional to 39,088.80, 58,546.80 and 30,254.40

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Solution

The fourth proportional to 39,088.80, 58,546.80 and 30,254.40 is: 45,314.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,088.80 : 58,546.80 = 30,254.40 : x
  2. Step 2: Convert to fraction form
    39,088.80/58,546.80 = 30,254.40/x
  3. Step 3: Cross multiply
    39,088.80x = 58,546.80 × 30,254.40
  4. Step 4: Simplify right side
    39,088.80x = 1,771,298,305.92
  5. Step 5: Solve for x
    x = 1,771,298,305.92/39,088.80
  6. Step 6: Final answer
    x = 45,314.73

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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.