Home / 30,670.98-42,323.01-17,239.14

Finding the Fourth Proportional to 30,670.98, 42,323.01 and 17,239.14

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Solution

The fourth proportional to 30,670.98, 42,323.01 and 17,239.14 is: 23,788.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670.98 : 42,323.01 = 17,239.14 : x
  2. Step 2: Convert to fraction form
    30,670.98/42,323.01 = 17,239.14/x
  3. Step 3: Cross multiply
    30,670.98x = 42,323.01 × 17,239.14
  4. Step 4: Simplify right side
    30,670.98x = 729,612,294.61
  5. Step 5: Solve for x
    x = 729,612,294.61/30,670.98
  6. Step 6: Final answer
    x = 23,788.36

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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.