Home / 30,831.14-42,543.91-17,399.81

Finding the Fourth Proportional to 30,831.14, 42,543.91 and 17,399.81

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Solution

The fourth proportional to 30,831.14, 42,543.91 and 17,399.81 is: 24,010.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.14 : 42,543.91 = 17,399.81 : x
  2. Step 2: Convert to fraction form
    30,831.14/42,543.91 = 17,399.81/x
  3. Step 3: Cross multiply
    30,831.14x = 42,543.91 × 17,399.81
  4. Step 4: Simplify right side
    30,831.14x = 740,255,694.44
  5. Step 5: Solve for x
    x = 740,255,694.44/30,831.14
  6. Step 6: Final answer
    x = 24,010.00

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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.