Home / 21,318.77-32,010.96-19,000.55

Finding the Fourth Proportional to 21,318.77, 32,010.96 and 19,000.55

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Solution

The fourth proportional to 21,318.77, 32,010.96 and 19,000.55 is: 28,530.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318.77 : 32,010.96 = 19,000.55 : x
  2. Step 2: Convert to fraction form
    21,318.77/32,010.96 = 19,000.55/x
  3. Step 3: Cross multiply
    21,318.77x = 32,010.96 × 19,000.55
  4. Step 4: Simplify right side
    21,318.77x = 608,225,997.31
  5. Step 5: Solve for x
    x = 608,225,997.31/21,318.77
  6. Step 6: Final answer
    x = 28,530.07

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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.