Home / 30,213.18-45,279.68-13,570.11

Finding the Fourth Proportional to 30,213.18, 45,279.68 and 13,570.11

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Solution

The fourth proportional to 30,213.18, 45,279.68 and 13,570.11 is: 20,337.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,213.18 : 45,279.68 = 13,570.11 : x
  2. Step 2: Convert to fraction form
    30,213.18/45,279.68 = 13,570.11/x
  3. Step 3: Cross multiply
    30,213.18x = 45,279.68 × 13,570.11
  4. Step 4: Simplify right side
    30,213.18x = 614,450,170.51
  5. Step 5: Solve for x
    x = 614,450,170.51/30,213.18
  6. Step 6: Final answer
    x = 20,337.16

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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.