Home / 21,387.80-32,059.45-8,051.63

Finding the Fourth Proportional to 21,387.80, 32,059.45 and 8,051.63

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Solution

The fourth proportional to 21,387.80, 32,059.45 and 8,051.63 is: 12,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387.80 : 32,059.45 = 8,051.63 : x
  2. Step 2: Convert to fraction form
    21,387.80/32,059.45 = 8,051.63/x
  3. Step 3: Cross multiply
    21,387.80x = 32,059.45 × 8,051.63
  4. Step 4: Simplify right side
    21,387.80x = 258,130,919.62
  5. Step 5: Solve for x
    x = 258,130,919.62/21,387.80
  6. Step 6: Final answer
    x = 12,069.07

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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.