Home / 35,115.24-48,449.70-21,510.48

Finding the Fourth Proportional to 35,115.24, 48,449.70 and 21,510.48

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Solution

The fourth proportional to 35,115.24, 48,449.70 and 21,510.48 is: 29,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,115.24 : 48,449.70 = 21,510.48 : x
  2. Step 2: Convert to fraction form
    35,115.24/48,449.70 = 21,510.48/x
  3. Step 3: Cross multiply
    35,115.24x = 48,449.70 × 21,510.48
  4. Step 4: Simplify right side
    35,115.24x = 1,042,176,302.86
  5. Step 5: Solve for x
    x = 1,042,176,302.86/35,115.24
  6. Step 6: Final answer
    x = 29,678.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.