Home / 28,207.71-38,941.16-19,271.79

Finding the Fourth Proportional to 28,207.71, 38,941.16 and 19,271.79

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Solution

The fourth proportional to 28,207.71, 38,941.16 and 19,271.79 is: 26,604.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.71 : 38,941.16 = 19,271.79 : x
  2. Step 2: Convert to fraction form
    28,207.71/38,941.16 = 19,271.79/x
  3. Step 3: Cross multiply
    28,207.71x = 38,941.16 × 19,271.79
  4. Step 4: Simplify right side
    28,207.71x = 750,465,761.52
  5. Step 5: Solve for x
    x = 750,465,761.52/28,207.71
  6. Step 6: Final answer
    x = 26,604.99

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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.