Home / 30,948.88-42,709.34-16,801.62

Finding the Fourth Proportional to 30,948.88, 42,709.34 and 16,801.62

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Solution

The fourth proportional to 30,948.88, 42,709.34 and 16,801.62 is: 23,186.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,948.88 : 42,709.34 = 16,801.62 : x
  2. Step 2: Convert to fraction form
    30,948.88/42,709.34 = 16,801.62/x
  3. Step 3: Cross multiply
    30,948.88x = 42,709.34 × 16,801.62
  4. Step 4: Simplify right side
    30,948.88x = 717,586,101.13
  5. Step 5: Solve for x
    x = 717,586,101.13/30,948.88
  6. Step 6: Final answer
    x = 23,186.17

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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.