Home / 30,127.32-45,176.40-10,398.96

Finding the Fourth Proportional to 30,127.32, 45,176.40 and 10,398.96

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Solution

The fourth proportional to 30,127.32, 45,176.40 and 10,398.96 is: 15,593.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,127.32 : 45,176.40 = 10,398.96 : x
  2. Step 2: Convert to fraction form
    30,127.32/45,176.40 = 10,398.96/x
  3. Step 3: Cross multiply
    30,127.32x = 45,176.40 × 10,398.96
  4. Step 4: Simplify right side
    30,127.32x = 469,787,576.54
  5. Step 5: Solve for x
    x = 469,787,576.54/30,127.32
  6. Step 6: Final answer
    x = 15,593.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.