Home / 28,201.84-38,920.09-15,626.32

Finding the Fourth Proportional to 28,201.84, 38,920.09 and 15,626.32

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Solution

The fourth proportional to 28,201.84, 38,920.09 and 15,626.32 is: 21,565.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,201.84 : 38,920.09 = 15,626.32 : x
  2. Step 2: Convert to fraction form
    28,201.84/38,920.09 = 15,626.32/x
  3. Step 3: Cross multiply
    28,201.84x = 38,920.09 × 15,626.32
  4. Step 4: Simplify right side
    28,201.84x = 608,177,586.17
  5. Step 5: Solve for x
    x = 608,177,586.17/28,201.84
  6. Step 6: Final answer
    x = 21,565.18

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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.