Home / 28,331.03-39,096.65-15,585

Finding the Fourth Proportional to 28,331.03, 39,096.65 and 15,585

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Solution

The fourth proportional to 28,331.03, 39,096.65 and 15,585 is: 21,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.03 : 39,096.65 = 15,585 : x
  2. Step 2: Convert to fraction form
    28,331.03/39,096.65 = 15,585/x
  3. Step 3: Cross multiply
    28,331.03x = 39,096.65 × 15,585
  4. Step 4: Simplify right side
    28,331.03x = 609,321,212.33
  5. Step 5: Solve for x
    x = 609,321,212.33/28,331.03
  6. Step 6: Final answer
    x = 21,507.21

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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.