Home / 34,142.54-47,117.12-19,805.69

Finding the Fourth Proportional to 34,142.54, 47,117.12 and 19,805.69

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Solution

The fourth proportional to 34,142.54, 47,117.12 and 19,805.69 is: 27,332.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,142.54 : 47,117.12 = 19,805.69 : x
  2. Step 2: Convert to fraction form
    34,142.54/47,117.12 = 19,805.69/x
  3. Step 3: Cross multiply
    34,142.54x = 47,117.12 × 19,805.69
  4. Step 4: Simplify right side
    34,142.54x = 933,187,072.41
  5. Step 5: Solve for x
    x = 933,187,072.41/34,142.54
  6. Step 6: Final answer
    x = 27,332.09

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.