Home / 25,343.66-34,977.76-15,924.98

Finding the Fourth Proportional to 25,343.66, 34,977.76 and 15,924.98

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Solution

The fourth proportional to 25,343.66, 34,977.76 and 15,924.98 is: 21,978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,343.66 : 34,977.76 = 15,924.98 : x
  2. Step 2: Convert to fraction form
    25,343.66/34,977.76 = 15,924.98/x
  3. Step 3: Cross multiply
    25,343.66x = 34,977.76 × 15,924.98
  4. Step 4: Simplify right side
    25,343.66x = 557,020,128.44
  5. Step 5: Solve for x
    x = 557,020,128.44/25,343.66
  6. Step 6: Final answer
    x = 21,978.68

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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.