Home / 28,628.12-39,521.68-22,240.46

Finding the Fourth Proportional to 28,628.12, 39,521.68 and 22,240.46

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Solution

The fourth proportional to 28,628.12, 39,521.68 and 22,240.46 is: 30,703.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,628.12 : 39,521.68 = 22,240.46 : x
  2. Step 2: Convert to fraction form
    28,628.12/39,521.68 = 22,240.46/x
  3. Step 3: Cross multiply
    28,628.12x = 39,521.68 × 22,240.46
  4. Step 4: Simplify right side
    28,628.12x = 878,980,343.17
  5. Step 5: Solve for x
    x = 878,980,343.17/28,628.12
  6. Step 6: Final answer
    x = 30,703.39

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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.