Home / 16,391.02-22,616.22-10,420.51

Finding the Fourth Proportional to 16,391.02, 22,616.22 and 10,420.51

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Solution

The fourth proportional to 16,391.02, 22,616.22 and 10,420.51 is: 14,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.02 : 22,616.22 = 10,420.51 : x
  2. Step 2: Convert to fraction form
    16,391.02/22,616.22 = 10,420.51/x
  3. Step 3: Cross multiply
    16,391.02x = 22,616.22 × 10,420.51
  4. Step 4: Simplify right side
    16,391.02x = 235,672,546.67
  5. Step 5: Solve for x
    x = 235,672,546.67/16,391.02
  6. Step 6: Final answer
    x = 14,378.15

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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.