Home / 30,663.97-42,317.48-17,235.19

Finding the Fourth Proportional to 30,663.97, 42,317.48 and 17,235.19

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Solution

The fourth proportional to 30,663.97, 42,317.48 and 17,235.19 is: 23,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,663.97 : 42,317.48 = 17,235.19 : x
  2. Step 2: Convert to fraction form
    30,663.97/42,317.48 = 17,235.19/x
  3. Step 3: Cross multiply
    30,663.97x = 42,317.48 × 17,235.19
  4. Step 4: Simplify right side
    30,663.97x = 729,349,666.07
  5. Step 5: Solve for x
    x = 729,349,666.07/30,663.97
  6. Step 6: Final answer
    x = 23,785.23

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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.