Home / 30,630.76-42,270.15-17,201.67

Finding the Fourth Proportional to 30,630.76, 42,270.15 and 17,201.67

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Solution

The fourth proportional to 30,630.76, 42,270.15 and 17,201.67 is: 23,738.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,630.76 : 42,270.15 = 17,201.67 : x
  2. Step 2: Convert to fraction form
    30,630.76/42,270.15 = 17,201.67/x
  3. Step 3: Cross multiply
    30,630.76x = 42,270.15 × 17,201.67
  4. Step 4: Simplify right side
    30,630.76x = 727,117,077.14
  5. Step 5: Solve for x
    x = 727,117,077.14/30,630.76
  6. Step 6: Final answer
    x = 23,738.14

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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.