Home / 28,763.88-39,706.38-19,337.91

Finding the Fourth Proportional to 28,763.88, 39,706.38 and 19,337.91

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Solution

The fourth proportional to 28,763.88, 39,706.38 and 19,337.91 is: 26,694.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763.88 : 39,706.38 = 19,337.91 : x
  2. Step 2: Convert to fraction form
    28,763.88/39,706.38 = 19,337.91/x
  3. Step 3: Cross multiply
    28,763.88x = 39,706.38 × 19,337.91
  4. Step 4: Simplify right side
    28,763.88x = 767,838,402.87
  5. Step 5: Solve for x
    x = 767,838,402.87/28,763.88
  6. Step 6: Final answer
    x = 26,694.54

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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.