Home / 21,645.24-32,443.28-9,157.47

Finding the Fourth Proportional to 21,645.24, 32,443.28 and 9,157.47

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Solution

The fourth proportional to 21,645.24, 32,443.28 and 9,157.47 is: 13,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,645.24 : 32,443.28 = 9,157.47 : x
  2. Step 2: Convert to fraction form
    21,645.24/32,443.28 = 9,157.47/x
  3. Step 3: Cross multiply
    21,645.24x = 32,443.28 × 9,157.47
  4. Step 4: Simplify right side
    21,645.24x = 297,098,317.51
  5. Step 5: Solve for x
    x = 297,098,317.51/21,645.24
  6. Step 6: Final answer
    x = 13,725.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.