Home / 30,215.29-45,316.10-11,488.65

Finding the Fourth Proportional to 30,215.29, 45,316.10 and 11,488.65

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Solution

The fourth proportional to 30,215.29, 45,316.10 and 11,488.65 is: 17,230.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,215.29 : 45,316.10 = 11,488.65 : x
  2. Step 2: Convert to fraction form
    30,215.29/45,316.10 = 11,488.65/x
  3. Step 3: Cross multiply
    30,215.29x = 45,316.10 × 11,488.65
  4. Step 4: Simplify right side
    30,215.29x = 520,620,954.28
  5. Step 5: Solve for x
    x = 520,620,954.28/30,215.29
  6. Step 6: Final answer
    x = 17,230.38

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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.