Home / 28,683.58-39,580.99-15,937.15

Finding the Fourth Proportional to 28,683.58, 39,580.99 and 15,937.15

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Solution

The fourth proportional to 28,683.58, 39,580.99 and 15,937.15 is: 21,991.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,683.58 : 39,580.99 = 15,937.15 : x
  2. Step 2: Convert to fraction form
    28,683.58/39,580.99 = 15,937.15/x
  3. Step 3: Cross multiply
    28,683.58x = 39,580.99 × 15,937.15
  4. Step 4: Simplify right side
    28,683.58x = 630,808,174.78
  5. Step 5: Solve for x
    x = 630,808,174.78/28,683.58
  6. Step 6: Final answer
    x = 21,991.96

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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.