Home / 28,889.76-39,872.45-17,562.81

Finding the Fourth Proportional to 28,889.76, 39,872.45 and 17,562.81

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Solution

The fourth proportional to 28,889.76, 39,872.45 and 17,562.81 is: 24,239.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,889.76 : 39,872.45 = 17,562.81 : x
  2. Step 2: Convert to fraction form
    28,889.76/39,872.45 = 17,562.81/x
  3. Step 3: Cross multiply
    28,889.76x = 39,872.45 × 17,562.81
  4. Step 4: Simplify right side
    28,889.76x = 700,272,175.77
  5. Step 5: Solve for x
    x = 700,272,175.77/28,889.76
  6. Step 6: Final answer
    x = 24,239.46

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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.