Home / 19,432.81-26,752.43-18,540.12

Finding the Fourth Proportional to 19,432.81, 26,752.43 and 18,540.12

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Solution

The fourth proportional to 19,432.81, 26,752.43 and 18,540.12 is: 25,523.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,432.81 : 26,752.43 = 18,540.12 : x
  2. Step 2: Convert to fraction form
    19,432.81/26,752.43 = 18,540.12/x
  3. Step 3: Cross multiply
    19,432.81x = 26,752.43 × 18,540.12
  4. Step 4: Simplify right side
    19,432.81x = 495,993,169.79
  5. Step 5: Solve for x
    x = 495,993,169.79/19,432.81
  6. Step 6: Final answer
    x = 25,523.50

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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.