Home / 21,602.79-32,378.31-14,109.93

Finding the Fourth Proportional to 21,602.79, 32,378.31 and 14,109.93

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Solution

The fourth proportional to 21,602.79, 32,378.31 and 14,109.93 is: 21,147.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.79 : 32,378.31 = 14,109.93 : x
  2. Step 2: Convert to fraction form
    21,602.79/32,378.31 = 14,109.93/x
  3. Step 3: Cross multiply
    21,602.79x = 32,378.31 × 14,109.93
  4. Step 4: Simplify right side
    21,602.79x = 456,855,687.62
  5. Step 5: Solve for x
    x = 456,855,687.62/21,602.79
  6. Step 6: Final answer
    x = 21,147.99

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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.