Home / 25,389.57-38,120.19-15,999.15

Finding the Fourth Proportional to 25,389.57, 38,120.19 and 15,999.15

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Solution

The fourth proportional to 25,389.57, 38,120.19 and 15,999.15 is: 24,021.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,389.57 : 38,120.19 = 15,999.15 : x
  2. Step 2: Convert to fraction form
    25,389.57/38,120.19 = 15,999.15/x
  3. Step 3: Cross multiply
    25,389.57x = 38,120.19 × 15,999.15
  4. Step 4: Simplify right side
    25,389.57x = 609,890,637.84
  5. Step 5: Solve for x
    x = 609,890,637.84/25,389.57
  6. Step 6: Final answer
    x = 24,021.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.