Home / 30,569.42-42,185.40-17,140.64

Finding the Fourth Proportional to 30,569.42, 42,185.40 and 17,140.64

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Solution

The fourth proportional to 30,569.42, 42,185.40 and 17,140.64 is: 23,653.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,569.42 : 42,185.40 = 17,140.64 : x
  2. Step 2: Convert to fraction form
    30,569.42/42,185.40 = 17,140.64/x
  3. Step 3: Cross multiply
    30,569.42x = 42,185.40 × 17,140.64
  4. Step 4: Simplify right side
    30,569.42x = 723,084,754.66
  5. Step 5: Solve for x
    x = 723,084,754.66/30,569.42
  6. Step 6: Final answer
    x = 23,653.86

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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.