Home / 39,276.16-58,859.20-30,470.40

Finding the Fourth Proportional to 39,276.16, 58,859.20 and 30,470.40

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Solution

The fourth proportional to 39,276.16, 58,859.20 and 30,470.40 is: 45,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,276.16 : 58,859.20 = 30,470.40 : x
  2. Step 2: Convert to fraction form
    39,276.16/58,859.20 = 30,470.40/x
  3. Step 3: Cross multiply
    39,276.16x = 58,859.20 × 30,470.40
  4. Step 4: Simplify right side
    39,276.16x = 1,793,463,367.68
  5. Step 5: Solve for x
    x = 1,793,463,367.68/39,276.16
  6. Step 6: Final answer
    x = 45,662.90

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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.