Home / 28,723.16-39,625.24-19,153.80

Finding the Fourth Proportional to 28,723.16, 39,625.24 and 19,153.80

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Solution

The fourth proportional to 28,723.16, 39,625.24 and 19,153.80 is: 26,423.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.16 : 39,625.24 = 19,153.80 : x
  2. Step 2: Convert to fraction form
    28,723.16/39,625.24 = 19,153.80/x
  3. Step 3: Cross multiply
    28,723.16x = 39,625.24 × 19,153.80
  4. Step 4: Simplify right side
    28,723.16x = 758,973,921.91
  5. Step 5: Solve for x
    x = 758,973,921.91/28,723.16
  6. Step 6: Final answer
    x = 26,423.76

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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.