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Finding the Fourth Proportional to 30,297.76, 45,440.88 and 10,308.16

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Solution

The fourth proportional to 30,297.76, 45,440.88 and 10,308.16 is: 15,460.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,297.76 : 45,440.88 = 10,308.16 : x
  2. Step 2: Convert to fraction form
    30,297.76/45,440.88 = 10,308.16/x
  3. Step 3: Cross multiply
    30,297.76x = 45,440.88 × 10,308.16
  4. Step 4: Simplify right side
    30,297.76x = 468,411,861.58
  5. Step 5: Solve for x
    x = 468,411,861.58/30,297.76
  6. Step 6: Final answer
    x = 15,460.28

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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.