Home / 30,747.51-42,433.56-17,317.49

Finding the Fourth Proportional to 30,747.51, 42,433.56 and 17,317.49

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Solution

The fourth proportional to 30,747.51, 42,433.56 and 17,317.49 is: 23,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,747.51 : 42,433.56 = 17,317.49 : x
  2. Step 2: Convert to fraction form
    30,747.51/42,433.56 = 17,317.49/x
  3. Step 3: Cross multiply
    30,747.51x = 42,433.56 × 17,317.49
  4. Step 4: Simplify right side
    30,747.51x = 734,842,538.80
  5. Step 5: Solve for x
    x = 734,842,538.80/30,747.51
  6. Step 6: Final answer
    x = 23,899.25

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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.