Home / 39,900.52-55,081.38-23,130.28

Finding the Fourth Proportional to 39,900.52, 55,081.38 and 23,130.28

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Solution

The fourth proportional to 39,900.52, 55,081.38 and 23,130.28 is: 31,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,900.52 : 55,081.38 = 23,130.28 : x
  2. Step 2: Convert to fraction form
    39,900.52/55,081.38 = 23,130.28/x
  3. Step 3: Cross multiply
    39,900.52x = 55,081.38 × 23,130.28
  4. Step 4: Simplify right side
    39,900.52x = 1,274,047,742.19
  5. Step 5: Solve for x
    x = 1,274,047,742.19/39,900.52
  6. Step 6: Final answer
    x = 31,930.60

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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.