Home / 28,076.04-38,744.29-15,328.73

Finding the Fourth Proportional to 28,076.04, 38,744.29 and 15,328.73

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Solution

The fourth proportional to 28,076.04, 38,744.29 and 15,328.73 is: 21,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.04 : 38,744.29 = 15,328.73 : x
  2. Step 2: Convert to fraction form
    28,076.04/38,744.29 = 15,328.73/x
  3. Step 3: Cross multiply
    28,076.04x = 38,744.29 × 15,328.73
  4. Step 4: Simplify right side
    28,076.04x = 593,900,818.99
  5. Step 5: Solve for x
    x = 593,900,818.99/28,076.04
  6. Step 6: Final answer
    x = 21,153.30

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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.