Home / 30,569.31-42,185.70-17,140.59

Finding the Fourth Proportional to 30,569.31, 42,185.70 and 17,140.59

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Solution

The fourth proportional to 30,569.31, 42,185.70 and 17,140.59 is: 23,654.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,569.31 : 42,185.70 = 17,140.59 : x
  2. Step 2: Convert to fraction form
    30,569.31/42,185.70 = 17,140.59/x
  3. Step 3: Cross multiply
    30,569.31x = 42,185.70 × 17,140.59
  4. Step 4: Simplify right side
    30,569.31x = 723,087,787.56
  5. Step 5: Solve for x
    x = 723,087,787.56/30,569.31
  6. Step 6: Final answer
    x = 23,654.04

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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.