Home / 16,821.58-23,223.10-10,108.84

Finding the Fourth Proportional to 16,821.58, 23,223.10 and 10,108.84

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Solution

The fourth proportional to 16,821.58, 23,223.10 and 10,108.84 is: 13,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.58 : 23,223.10 = 10,108.84 : x
  2. Step 2: Convert to fraction form
    16,821.58/23,223.10 = 10,108.84/x
  3. Step 3: Cross multiply
    16,821.58x = 23,223.10 × 10,108.84
  4. Step 4: Simplify right side
    16,821.58x = 234,758,602.20
  5. Step 5: Solve for x
    x = 234,758,602.20/16,821.58
  6. Step 6: Final answer
    x = 13,955.80

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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.