Home / 29,017.31-40,036.88-18,403.07

Finding the Fourth Proportional to 29,017.31, 40,036.88 and 18,403.07

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Solution

The fourth proportional to 29,017.31, 40,036.88 and 18,403.07 is: 25,391.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,017.31 : 40,036.88 = 18,403.07 : x
  2. Step 2: Convert to fraction form
    29,017.31/40,036.88 = 18,403.07/x
  3. Step 3: Cross multiply
    29,017.31x = 40,036.88 × 18,403.07
  4. Step 4: Simplify right side
    29,017.31x = 736,801,351.04
  5. Step 5: Solve for x
    x = 736,801,351.04/29,017.31
  6. Step 6: Final answer
    x = 25,391.79

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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.