Home / 42,199.88-58,222.68-28,055.12

Finding the Fourth Proportional to 42,199.88, 58,222.68 and 28,055.12

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Solution

The fourth proportional to 42,199.88, 58,222.68 and 28,055.12 is: 38,707.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,199.88 : 58,222.68 = 28,055.12 : x
  2. Step 2: Convert to fraction form
    42,199.88/58,222.68 = 28,055.12/x
  3. Step 3: Cross multiply
    42,199.88x = 58,222.68 × 28,055.12
  4. Step 4: Simplify right side
    42,199.88x = 1,633,444,274.12
  5. Step 5: Solve for x
    x = 1,633,444,274.12/42,199.88
  6. Step 6: Final answer
    x = 38,707.32

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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.