Home / 30,011.67-45,045.74-15,231.20

Finding the Fourth Proportional to 30,011.67, 45,045.74 and 15,231.20

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Solution

The fourth proportional to 30,011.67, 45,045.74 and 15,231.20 is: 22,861.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,011.67 : 45,045.74 = 15,231.20 : x
  2. Step 2: Convert to fraction form
    30,011.67/45,045.74 = 15,231.20/x
  3. Step 3: Cross multiply
    30,011.67x = 45,045.74 × 15,231.20
  4. Step 4: Simplify right side
    30,011.67x = 686,100,373.70
  5. Step 5: Solve for x
    x = 686,100,373.70/30,011.67
  6. Step 6: Final answer
    x = 22,861.12

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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.