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Finding the Fourth Proportional to 21,492.79, 32,232.94 and 9,012.47

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Solution

The fourth proportional to 21,492.79, 32,232.94 and 9,012.47 is: 13,516.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492.79 : 32,232.94 = 9,012.47 : x
  2. Step 2: Convert to fraction form
    21,492.79/32,232.94 = 9,012.47/x
  3. Step 3: Cross multiply
    21,492.79x = 32,232.94 × 9,012.47
  4. Step 4: Simplify right side
    21,492.79x = 290,498,221.07
  5. Step 5: Solve for x
    x = 290,498,221.07/21,492.79
  6. Step 6: Final answer
    x = 13,516.08

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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.