Home / 21,538.08-32,319.84-11,677.12

Finding the Fourth Proportional to 21,538.08, 32,319.84 and 11,677.12

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Solution

The fourth proportional to 21,538.08, 32,319.84 and 11,677.12 is: 17,522.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538.08 : 32,319.84 = 11,677.12 : x
  2. Step 2: Convert to fraction form
    21,538.08/32,319.84 = 11,677.12/x
  3. Step 3: Cross multiply
    21,538.08x = 32,319.84 × 11,677.12
  4. Step 4: Simplify right side
    21,538.08x = 377,402,650.06
  5. Step 5: Solve for x
    x = 377,402,650.06/21,538.08
  6. Step 6: Final answer
    x = 17,522.58

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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.