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Finding the Fourth Proportional to 30,203.64, 45,302.76 and 10,481.76

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Solution

The fourth proportional to 30,203.64, 45,302.76 and 10,481.76 is: 15,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,203.64 : 45,302.76 = 10,481.76 : x
  2. Step 2: Convert to fraction form
    30,203.64/45,302.76 = 10,481.76/x
  3. Step 3: Cross multiply
    30,203.64x = 45,302.76 × 10,481.76
  4. Step 4: Simplify right side
    30,203.64x = 474,852,657.66
  5. Step 5: Solve for x
    x = 474,852,657.66/30,203.64
  6. Step 6: Final answer
    x = 15,721.70

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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.