Home / 30,734.26-42,417.40-17,991.34

Finding the Fourth Proportional to 30,734.26, 42,417.40 and 17,991.34

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Solution

The fourth proportional to 30,734.26, 42,417.40 and 17,991.34 is: 24,830.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,734.26 : 42,417.40 = 17,991.34 : x
  2. Step 2: Convert to fraction form
    30,734.26/42,417.40 = 17,991.34/x
  3. Step 3: Cross multiply
    30,734.26x = 42,417.40 × 17,991.34
  4. Step 4: Simplify right side
    30,734.26x = 763,145,865.32
  5. Step 5: Solve for x
    x = 763,145,865.32/30,734.26
  6. Step 6: Final answer
    x = 24,830.46

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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.