Home / 30,948.48-42,708.77-16,801.32

Finding the Fourth Proportional to 30,948.48, 42,708.77 and 16,801.32

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Solution

The fourth proportional to 30,948.48, 42,708.77 and 16,801.32 is: 23,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,948.48 : 42,708.77 = 16,801.32 : x
  2. Step 2: Convert to fraction form
    30,948.48/42,708.77 = 16,801.32/x
  3. Step 3: Cross multiply
    30,948.48x = 42,708.77 × 16,801.32
  4. Step 4: Simplify right side
    30,948.48x = 717,563,850.73
  5. Step 5: Solve for x
    x = 717,563,850.73/30,948.48
  6. Step 6: Final answer
    x = 23,185.75

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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.