Home / 30,948.60-42,708.81-16,801.44

Finding the Fourth Proportional to 30,948.60, 42,708.81 and 16,801.44

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Solution

The fourth proportional to 30,948.60, 42,708.81 and 16,801.44 is: 23,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,948.60 : 42,708.81 = 16,801.44 : x
  2. Step 2: Convert to fraction form
    30,948.60/42,708.81 = 16,801.44/x
  3. Step 3: Cross multiply
    30,948.60x = 42,708.81 × 16,801.44
  4. Step 4: Simplify right side
    30,948.60x = 717,569,508.69
  5. Step 5: Solve for x
    x = 717,569,508.69/30,948.60
  6. Step 6: Final answer
    x = 23,185.85

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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.