Home / 21,360.02-32,040.03-8,218.58

Finding the Fourth Proportional to 21,360.02, 32,040.03 and 8,218.58

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Solution

The fourth proportional to 21,360.02, 32,040.03 and 8,218.58 is: 12,327.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360.02 : 32,040.03 = 8,218.58 : x
  2. Step 2: Convert to fraction form
    21,360.02/32,040.03 = 8,218.58/x
  3. Step 3: Cross multiply
    21,360.02x = 32,040.03 × 8,218.58
  4. Step 4: Simplify right side
    21,360.02x = 263,323,549.76
  5. Step 5: Solve for x
    x = 263,323,549.76/21,360.02
  6. Step 6: Final answer
    x = 12,327.87

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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.