Home / 30,178.28-41,645.40-16,748.76

Finding the Fourth Proportional to 30,178.28, 41,645.40 and 16,748.76

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Solution

The fourth proportional to 30,178.28, 41,645.40 and 16,748.76 is: 23,112.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,178.28 : 41,645.40 = 16,748.76 : x
  2. Step 2: Convert to fraction form
    30,178.28/41,645.40 = 16,748.76/x
  3. Step 3: Cross multiply
    30,178.28x = 41,645.40 × 16,748.76
  4. Step 4: Simplify right side
    30,178.28x = 697,508,809.70
  5. Step 5: Solve for x
    x = 697,508,809.70/30,178.28
  6. Step 6: Final answer
    x = 23,112.94

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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.