Home / 25,880.72-38,798.60-13,394.16

Finding the Fourth Proportional to 25,880.72, 38,798.60 and 13,394.16

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Solution

The fourth proportional to 25,880.72, 38,798.60 and 13,394.16 is: 20,079.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880.72 : 38,798.60 = 13,394.16 : x
  2. Step 2: Convert to fraction form
    25,880.72/38,798.60 = 13,394.16/x
  3. Step 3: Cross multiply
    25,880.72x = 38,798.60 × 13,394.16
  4. Step 4: Simplify right side
    25,880.72x = 519,674,589.21
  5. Step 5: Solve for x
    x = 519,674,589.21/25,880.72
  6. Step 6: Final answer
    x = 20,079.61

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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.