Home / 28,137.78-38,827.53-15,562.26

Finding the Fourth Proportional to 28,137.78, 38,827.53 and 15,562.26

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Solution

The fourth proportional to 28,137.78, 38,827.53 and 15,562.26 is: 21,474.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.78 : 38,827.53 = 15,562.26 : x
  2. Step 2: Convert to fraction form
    28,137.78/38,827.53 = 15,562.26/x
  3. Step 3: Cross multiply
    28,137.78x = 38,827.53 × 15,562.26
  4. Step 4: Simplify right side
    28,137.78x = 604,244,117.02
  5. Step 5: Solve for x
    x = 604,244,117.02/28,137.78
  6. Step 6: Final answer
    x = 21,474.48

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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.