Home / 30,065.28-45,058.88-12,275.11

Finding the Fourth Proportional to 30,065.28, 45,058.88 and 12,275.11

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Solution

The fourth proportional to 30,065.28, 45,058.88 and 12,275.11 is: 18,396.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,065.28 : 45,058.88 = 12,275.11 : x
  2. Step 2: Convert to fraction form
    30,065.28/45,058.88 = 12,275.11/x
  3. Step 3: Cross multiply
    30,065.28x = 45,058.88 × 12,275.11
  4. Step 4: Simplify right side
    30,065.28x = 553,102,677.79
  5. Step 5: Solve for x
    x = 553,102,677.79/30,065.28
  6. Step 6: Final answer
    x = 18,396.73

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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.