Home / 39,143.48-58,702.94-12,842.06

Finding the Fourth Proportional to 39,143.48, 58,702.94 and 12,842.06

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Solution

The fourth proportional to 39,143.48, 58,702.94 and 12,842.06 is: 19,259.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,143.48 : 58,702.94 = 12,842.06 : x
  2. Step 2: Convert to fraction form
    39,143.48/58,702.94 = 12,842.06/x
  3. Step 3: Cross multiply
    39,143.48x = 58,702.94 × 12,842.06
  4. Step 4: Simplify right side
    39,143.48x = 753,866,613.45
  5. Step 5: Solve for x
    x = 753,866,613.45/39,143.48
  6. Step 6: Final answer
    x = 19,259.06

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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.