Home / 39,980.16-55,179.36-23,222.88

Finding the Fourth Proportional to 39,980.16, 55,179.36 and 23,222.88

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Solution

The fourth proportional to 39,980.16, 55,179.36 and 23,222.88 is: 32,051.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,980.16 : 55,179.36 = 23,222.88 : x
  2. Step 2: Convert to fraction form
    39,980.16/55,179.36 = 23,222.88/x
  3. Step 3: Cross multiply
    39,980.16x = 55,179.36 × 23,222.88
  4. Step 4: Simplify right side
    39,980.16x = 1,281,423,655.76
  5. Step 5: Solve for x
    x = 1,281,423,655.76/39,980.16
  6. Step 6: Final answer
    x = 32,051.49

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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.