Home / 16,920.90-23,343.39-10,206.81

Finding the Fourth Proportional to 16,920.90, 23,343.39 and 10,206.81

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Solution

The fourth proportional to 16,920.90, 23,343.39 and 10,206.81 is: 14,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.90 : 23,343.39 = 10,206.81 : x
  2. Step 2: Convert to fraction form
    16,920.90/23,343.39 = 10,206.81/x
  3. Step 3: Cross multiply
    16,920.90x = 23,343.39 × 10,206.81
  4. Step 4: Simplify right side
    16,920.90x = 238,261,546.49
  5. Step 5: Solve for x
    x = 238,261,546.49/16,920.90
  6. Step 6: Final answer
    x = 14,080.90

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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.