Home / 30,771.13-42,464.16-17,342.88

Finding the Fourth Proportional to 30,771.13, 42,464.16 and 17,342.88

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Solution

The fourth proportional to 30,771.13, 42,464.16 and 17,342.88 is: 23,933.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,771.13 : 42,464.16 = 17,342.88 : x
  2. Step 2: Convert to fraction form
    30,771.13/42,464.16 = 17,342.88/x
  3. Step 3: Cross multiply
    30,771.13x = 42,464.16 × 17,342.88
  4. Step 4: Simplify right side
    30,771.13x = 736,450,831.18
  5. Step 5: Solve for x
    x = 736,450,831.18/30,771.13
  6. Step 6: Final answer
    x = 23,933.17

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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.