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Finding the Fourth Proportional to 21,895.27, 32,672.05 and 19,539.07

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Solution

The fourth proportional to 21,895.27, 32,672.05 and 19,539.07 is: 29,156.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.27 : 32,672.05 = 19,539.07 : x
  2. Step 2: Convert to fraction form
    21,895.27/32,672.05 = 19,539.07/x
  3. Step 3: Cross multiply
    21,895.27x = 32,672.05 × 19,539.07
  4. Step 4: Simplify right side
    21,895.27x = 638,381,471.99
  5. Step 5: Solve for x
    x = 638,381,471.99/21,895.27
  6. Step 6: Final answer
    x = 29,156.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.