Home / 28,671.07-39,585.36-21,944.65

Finding the Fourth Proportional to 28,671.07, 39,585.36 and 21,944.65

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Solution

The fourth proportional to 28,671.07, 39,585.36 and 21,944.65 is: 30,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,671.07 : 39,585.36 = 21,944.65 : x
  2. Step 2: Convert to fraction form
    28,671.07/39,585.36 = 21,944.65/x
  3. Step 3: Cross multiply
    28,671.07x = 39,585.36 × 21,944.65
  4. Step 4: Simplify right side
    28,671.07x = 868,686,870.32
  5. Step 5: Solve for x
    x = 868,686,870.32/28,671.07
  6. Step 6: Final answer
    x = 30,298.38

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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.