Home / 30,948.85-42,709.93-16,801.69

Finding the Fourth Proportional to 30,948.85, 42,709.93 and 16,801.69

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Solution

The fourth proportional to 30,948.85, 42,709.93 and 16,801.69 is: 23,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,948.85 : 42,709.93 = 16,801.69 : x
  2. Step 2: Convert to fraction form
    30,948.85/42,709.93 = 16,801.69/x
  3. Step 3: Cross multiply
    30,948.85x = 42,709.93 × 16,801.69
  4. Step 4: Simplify right side
    30,948.85x = 717,598,919.77
  5. Step 5: Solve for x
    x = 717,598,919.77/30,948.85
  6. Step 6: Final answer
    x = 23,186.61

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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.