Home / 28,569.72-39,426.38-15,823.32

Finding the Fourth Proportional to 28,569.72, 39,426.38 and 15,823.32

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Solution

The fourth proportional to 28,569.72, 39,426.38 and 15,823.32 is: 21,836.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,569.72 : 39,426.38 = 15,823.32 : x
  2. Step 2: Convert to fraction form
    28,569.72/39,426.38 = 15,823.32/x
  3. Step 3: Cross multiply
    28,569.72x = 39,426.38 × 15,823.32
  4. Step 4: Simplify right side
    28,569.72x = 623,856,227.18
  5. Step 5: Solve for x
    x = 623,856,227.18/28,569.72
  6. Step 6: Final answer
    x = 21,836.27

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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.