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Finding the Fourth Proportional to 30,603.76, 45,925.06 and 13,073.72

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Solution

The fourth proportional to 30,603.76, 45,925.06 and 13,073.72 is: 19,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,603.76 : 45,925.06 = 13,073.72 : x
  2. Step 2: Convert to fraction form
    30,603.76/45,925.06 = 13,073.72/x
  3. Step 3: Cross multiply
    30,603.76x = 45,925.06 × 13,073.72
  4. Step 4: Simplify right side
    30,603.76x = 600,411,375.42
  5. Step 5: Solve for x
    x = 600,411,375.42/30,603.76
  6. Step 6: Final answer
    x = 19,618.88

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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.