Home / 28,480.88-39,303.45-15,734.93

Finding the Fourth Proportional to 28,480.88, 39,303.45 and 15,734.93

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Solution

The fourth proportional to 28,480.88, 39,303.45 and 15,734.93 is: 21,714.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,480.88 : 39,303.45 = 15,734.93 : x
  2. Step 2: Convert to fraction form
    28,480.88/39,303.45 = 15,734.93/x
  3. Step 3: Cross multiply
    28,480.88x = 39,303.45 × 15,734.93
  4. Step 4: Simplify right side
    28,480.88x = 618,436,837.99
  5. Step 5: Solve for x
    x = 618,436,837.99/28,480.88
  6. Step 6: Final answer
    x = 21,714.11

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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.