Home / 28,406.52-39,159.96-19,882.26

Finding the Fourth Proportional to 28,406.52, 39,159.96 and 19,882.26

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Solution

The fourth proportional to 28,406.52, 39,159.96 and 19,882.26 is: 27,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,406.52 : 39,159.96 = 19,882.26 : x
  2. Step 2: Convert to fraction form
    28,406.52/39,159.96 = 19,882.26/x
  3. Step 3: Cross multiply
    28,406.52x = 39,159.96 × 19,882.26
  4. Step 4: Simplify right side
    28,406.52x = 778,588,506.31
  5. Step 5: Solve for x
    x = 778,588,506.31/28,406.52
  6. Step 6: Final answer
    x = 27,408.80

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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.