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Finding the Fourth Proportional to 39,168.59, 58,746.80 and 12,873.15

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Solution

The fourth proportional to 39,168.59, 58,746.80 and 12,873.15 is: 19,307.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.59 : 58,746.80 = 12,873.15 : x
  2. Step 2: Convert to fraction form
    39,168.59/58,746.80 = 12,873.15/x
  3. Step 3: Cross multiply
    39,168.59x = 58,746.80 × 12,873.15
  4. Step 4: Simplify right side
    39,168.59x = 756,256,400.60
  5. Step 5: Solve for x
    x = 756,256,400.60/39,168.59
  6. Step 6: Final answer
    x = 19,307.73

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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.