Home / 28,134.48-38,824.92-15,558.96

Finding the Fourth Proportional to 28,134.48, 38,824.92 and 15,558.96

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Solution

The fourth proportional to 28,134.48, 38,824.92 and 15,558.96 is: 21,471.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.48 : 38,824.92 = 15,558.96 : x
  2. Step 2: Convert to fraction form
    28,134.48/38,824.92 = 15,558.96/x
  3. Step 3: Cross multiply
    28,134.48x = 38,824.92 × 15,558.96
  4. Step 4: Simplify right side
    28,134.48x = 604,075,377.28
  5. Step 5: Solve for x
    x = 604,075,377.28/28,134.48
  6. Step 6: Final answer
    x = 21,471.00

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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.