Home / 21,385.80-32,078.67-5,803.02

Finding the Fourth Proportional to 21,385.80, 32,078.67 and 5,803.02

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Solution

The fourth proportional to 21,385.80, 32,078.67 and 5,803.02 is: 8,704.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385.80 : 32,078.67 = 5,803.02 : x
  2. Step 2: Convert to fraction form
    21,385.80/32,078.67 = 5,803.02/x
  3. Step 3: Cross multiply
    21,385.80x = 32,078.67 × 5,803.02
  4. Step 4: Simplify right side
    21,385.80x = 186,153,163.58
  5. Step 5: Solve for x
    x = 186,153,163.58/21,385.80
  6. Step 6: Final answer
    x = 8,704.52

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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.