Home / 30,231.10-45,302.28-15,217.57

Finding the Fourth Proportional to 30,231.10, 45,302.28 and 15,217.57

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Solution

The fourth proportional to 30,231.10, 45,302.28 and 15,217.57 is: 22,804.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,231.10 : 45,302.28 = 15,217.57 : x
  2. Step 2: Convert to fraction form
    30,231.10/45,302.28 = 15,217.57/x
  3. Step 3: Cross multiply
    30,231.10x = 45,302.28 × 15,217.57
  4. Step 4: Simplify right side
    30,231.10x = 689,390,617.06
  5. Step 5: Solve for x
    x = 689,390,617.06/30,231.10
  6. Step 6: Final answer
    x = 22,804.02

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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.