Home / 21,408.02-29,571.31-16,433.71

Finding the Fourth Proportional to 21,408.02, 29,571.31 and 16,433.71

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Solution

The fourth proportional to 21,408.02, 29,571.31 and 16,433.71 is: 22,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408.02 : 29,571.31 = 16,433.71 : x
  2. Step 2: Convert to fraction form
    21,408.02/29,571.31 = 16,433.71/x
  3. Step 3: Cross multiply
    21,408.02x = 29,571.31 × 16,433.71
  4. Step 4: Simplify right side
    21,408.02x = 485,966,445.81
  5. Step 5: Solve for x
    x = 485,966,445.81/21,408.02
  6. Step 6: Final answer
    x = 22,700.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.