Home / 39,259.59-58,860.67-12,590.40

Finding the Fourth Proportional to 39,259.59, 58,860.67 and 12,590.40

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Solution

The fourth proportional to 39,259.59, 58,860.67 and 12,590.40 is: 18,876.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,259.59 : 58,860.67 = 12,590.40 : x
  2. Step 2: Convert to fraction form
    39,259.59/58,860.67 = 12,590.40/x
  3. Step 3: Cross multiply
    39,259.59x = 58,860.67 × 12,590.40
  4. Step 4: Simplify right side
    39,259.59x = 741,079,085.26
  5. Step 5: Solve for x
    x = 741,079,085.26/39,259.59
  6. Step 6: Final answer
    x = 18,876.38

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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.