Home / 28,711.08-39,611.79-17,376.28

Finding the Fourth Proportional to 28,711.08, 39,611.79 and 17,376.28

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Solution

The fourth proportional to 28,711.08, 39,611.79 and 17,376.28 is: 23,973.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711.08 : 39,611.79 = 17,376.28 : x
  2. Step 2: Convert to fraction form
    28,711.08/39,611.79 = 17,376.28/x
  3. Step 3: Cross multiply
    28,711.08x = 39,611.79 × 17,376.28
  4. Step 4: Simplify right side
    28,711.08x = 688,305,455.31
  5. Step 5: Solve for x
    x = 688,305,455.31/28,711.08
  6. Step 6: Final answer
    x = 23,973.51

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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.