Home / 23,190.24-31,968.84-15,218.52

Finding the Fourth Proportional to 23,190.24, 31,968.84 and 15,218.52

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Solution

The fourth proportional to 23,190.24, 31,968.84 and 15,218.52 is: 20,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,190.24 : 31,968.84 = 15,218.52 : x
  2. Step 2: Convert to fraction form
    23,190.24/31,968.84 = 15,218.52/x
  3. Step 3: Cross multiply
    23,190.24x = 31,968.84 × 15,218.52
  4. Step 4: Simplify right side
    23,190.24x = 486,518,430.92
  5. Step 5: Solve for x
    x = 486,518,430.92/23,190.24
  6. Step 6: Final answer
    x = 20,979.45

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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.