Home / 40,117.08-55,362.44-21,968.57

Finding the Fourth Proportional to 40,117.08, 55,362.44 and 21,968.57

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Solution

The fourth proportional to 40,117.08, 55,362.44 and 21,968.57 is: 30,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,117.08 : 55,362.44 = 21,968.57 : x
  2. Step 2: Convert to fraction form
    40,117.08/55,362.44 = 21,968.57/x
  3. Step 3: Cross multiply
    40,117.08x = 55,362.44 × 21,968.57
  4. Step 4: Simplify right side
    40,117.08x = 1,216,233,831.84
  5. Step 5: Solve for x
    x = 1,216,233,831.84/40,117.08
  6. Step 6: Final answer
    x = 30,317.10

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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.