Home / 16,920.50-23,350.30-9,851.64

Finding the Fourth Proportional to 16,920.50, 23,350.30 and 9,851.64

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Solution

The fourth proportional to 16,920.50, 23,350.30 and 9,851.64 is: 13,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.50 : 23,350.30 = 9,851.64 : x
  2. Step 2: Convert to fraction form
    16,920.50/23,350.30 = 9,851.64/x
  3. Step 3: Cross multiply
    16,920.50x = 23,350.30 × 9,851.64
  4. Step 4: Simplify right side
    16,920.50x = 230,038,749.49
  5. Step 5: Solve for x
    x = 230,038,749.49/16,920.50
  6. Step 6: Final answer
    x = 13,595.27

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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.