Home / 28,029-38,680.14-15,453.48

Finding the Fourth Proportional to 28,029, 38,680.14 and 15,453.48

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Solution

The fourth proportional to 28,029, 38,680.14 and 15,453.48 is: 21,325.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029 : 38,680.14 = 15,453.48 : x
  2. Step 2: Convert to fraction form
    28,029/38,680.14 = 15,453.48/x
  3. Step 3: Cross multiply
    28,029x = 38,680.14 × 15,453.48
  4. Step 4: Simplify right side
    28,029x = 597,742,769.89
  5. Step 5: Solve for x
    x = 597,742,769.89/28,029
  6. Step 6: Final answer
    x = 21,325.87

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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.