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Finding the Fourth Proportional to 21,342.80, 32,005.99 and 14,748.99

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Solution

The fourth proportional to 21,342.80, 32,005.99 and 14,748.99 is: 22,117.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.80 : 32,005.99 = 14,748.99 : x
  2. Step 2: Convert to fraction form
    21,342.80/32,005.99 = 14,748.99/x
  3. Step 3: Cross multiply
    21,342.80x = 32,005.99 × 14,748.99
  4. Step 4: Simplify right side
    21,342.80x = 472,055,989.58
  5. Step 5: Solve for x
    x = 472,055,989.58/21,342.80
  6. Step 6: Final answer
    x = 22,117.81

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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.