Home / 30,723.56-42,397.82-17,111.51

Finding the Fourth Proportional to 30,723.56, 42,397.82 and 17,111.51

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Solution

The fourth proportional to 30,723.56, 42,397.82 and 17,111.51 is: 23,613.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,723.56 : 42,397.82 = 17,111.51 : x
  2. Step 2: Convert to fraction form
    30,723.56/42,397.82 = 17,111.51/x
  3. Step 3: Cross multiply
    30,723.56x = 42,397.82 × 17,111.51
  4. Step 4: Simplify right side
    30,723.56x = 725,490,551.70
  5. Step 5: Solve for x
    x = 725,490,551.70/30,723.56
  6. Step 6: Final answer
    x = 23,613.50

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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.