Home / 30,665.74-42,318.84-17,237.56

Finding the Fourth Proportional to 30,665.74, 42,318.84 and 17,237.56

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Solution

The fourth proportional to 30,665.74, 42,318.84 and 17,237.56 is: 23,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,665.74 : 42,318.84 = 17,237.56 : x
  2. Step 2: Convert to fraction form
    30,665.74/42,318.84 = 17,237.56/x
  3. Step 3: Cross multiply
    30,665.74x = 42,318.84 × 17,237.56
  4. Step 4: Simplify right side
    30,665.74x = 729,473,543.63
  5. Step 5: Solve for x
    x = 729,473,543.63/30,665.74
  6. Step 6: Final answer
    x = 23,787.90

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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.