Home / 30,948.30-42,708.33-16,801.20

Finding the Fourth Proportional to 30,948.30, 42,708.33 and 16,801.20

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Solution

The fourth proportional to 30,948.30, 42,708.33 and 16,801.20 is: 23,185.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,948.30 : 42,708.33 = 16,801.20 : x
  2. Step 2: Convert to fraction form
    30,948.30/42,708.33 = 16,801.20/x
  3. Step 3: Cross multiply
    30,948.30x = 42,708.33 × 16,801.20
  4. Step 4: Simplify right side
    30,948.30x = 717,551,194.00
  5. Step 5: Solve for x
    x = 717,551,194.00/30,948.30
  6. Step 6: Final answer
    x = 23,185.48

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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.