Home / 30,625.13-42,265.91-19,447.13

Finding the Fourth Proportional to 30,625.13, 42,265.91 and 19,447.13

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Solution

The fourth proportional to 30,625.13, 42,265.91 and 19,447.13 is: 26,839.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,625.13 : 42,265.91 = 19,447.13 : x
  2. Step 2: Convert to fraction form
    30,625.13/42,265.91 = 19,447.13/x
  3. Step 3: Cross multiply
    30,625.13x = 42,265.91 × 19,447.13
  4. Step 4: Simplify right side
    30,625.13x = 821,950,483.63
  5. Step 5: Solve for x
    x = 821,950,483.63/30,625.13
  6. Step 6: Final answer
    x = 26,839.09

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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.