Home / 26,899.20-37,123.20-15,724.80

Finding the Fourth Proportional to 26,899.20, 37,123.20 and 15,724.80

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Solution

The fourth proportional to 26,899.20, 37,123.20 and 15,724.80 is: 21,701.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,899.20 : 37,123.20 = 15,724.80 : x
  2. Step 2: Convert to fraction form
    26,899.20/37,123.20 = 15,724.80/x
  3. Step 3: Cross multiply
    26,899.20x = 37,123.20 × 15,724.80
  4. Step 4: Simplify right side
    26,899.20x = 583,754,895.36
  5. Step 5: Solve for x
    x = 583,754,895.36/26,899.20
  6. Step 6: Final answer
    x = 21,701.57

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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.