Home / 30,701.34-42,372.94-19,377.01

Finding the Fourth Proportional to 30,701.34, 42,372.94 and 19,377.01

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Solution

The fourth proportional to 30,701.34, 42,372.94 and 19,377.01 is: 26,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,701.34 : 42,372.94 = 19,377.01 : x
  2. Step 2: Convert to fraction form
    30,701.34/42,372.94 = 19,377.01/x
  3. Step 3: Cross multiply
    30,701.34x = 42,372.94 × 19,377.01
  4. Step 4: Simplify right side
    30,701.34x = 821,060,727.73
  5. Step 5: Solve for x
    x = 821,060,727.73/30,701.34
  6. Step 6: Final answer
    x = 26,743.48

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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.