Home / 30,148.28-45,222.80-11,423.28

Finding the Fourth Proportional to 30,148.28, 45,222.80 and 11,423.28

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Solution

The fourth proportional to 30,148.28, 45,222.80 and 11,423.28 is: 17,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,148.28 : 45,222.80 = 11,423.28 : x
  2. Step 2: Convert to fraction form
    30,148.28/45,222.80 = 11,423.28/x
  3. Step 3: Cross multiply
    30,148.28x = 45,222.80 × 11,423.28
  4. Step 4: Simplify right side
    30,148.28x = 516,592,706.78
  5. Step 5: Solve for x
    x = 516,592,706.78/30,148.28
  6. Step 6: Final answer
    x = 17,135.06

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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.