Home / 30,005.24-45,006.71-7,515.88

Finding the Fourth Proportional to 30,005.24, 45,006.71 and 7,515.88

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Solution

The fourth proportional to 30,005.24, 45,006.71 and 7,515.88 is: 11,273.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.24 : 45,006.71 = 7,515.88 : x
  2. Step 2: Convert to fraction form
    30,005.24/45,006.71 = 7,515.88/x
  3. Step 3: Cross multiply
    30,005.24x = 45,006.71 × 7,515.88
  4. Step 4: Simplify right side
    30,005.24x = 338,264,881.46
  5. Step 5: Solve for x
    x = 338,264,881.46/30,005.24
  6. Step 6: Final answer
    x = 11,273.53

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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.