Home / 39,279.51-58,906.05-12,618.96

Finding the Fourth Proportional to 39,279.51, 58,906.05 and 12,618.96

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Solution

The fourth proportional to 39,279.51, 58,906.05 and 12,618.96 is: 18,924.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279.51 : 58,906.05 = 12,618.96 : x
  2. Step 2: Convert to fraction form
    39,279.51/58,906.05 = 12,618.96/x
  3. Step 3: Cross multiply
    39,279.51x = 58,906.05 × 12,618.96
  4. Step 4: Simplify right side
    39,279.51x = 743,333,088.71
  5. Step 5: Solve for x
    x = 743,333,088.71/39,279.51
  6. Step 6: Final answer
    x = 18,924.19

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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.