Home / 28,328.80-39,096.28-15,584.51

Finding the Fourth Proportional to 28,328.80, 39,096.28 and 15,584.51

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Solution

The fourth proportional to 28,328.80, 39,096.28 and 15,584.51 is: 21,508.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.80 : 39,096.28 = 15,584.51 : x
  2. Step 2: Convert to fraction form
    28,328.80/39,096.28 = 15,584.51/x
  3. Step 3: Cross multiply
    28,328.80x = 39,096.28 × 15,584.51
  4. Step 4: Simplify right side
    28,328.80x = 609,296,366.62
  5. Step 5: Solve for x
    x = 609,296,366.62/28,328.80
  6. Step 6: Final answer
    x = 21,508.02

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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.