Home / 30,102.38-45,156.54-10,378.34

Finding the Fourth Proportional to 30,102.38, 45,156.54 and 10,378.34

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Solution

The fourth proportional to 30,102.38, 45,156.54 and 10,378.34 is: 15,568.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,102.38 : 45,156.54 = 10,378.34 : x
  2. Step 2: Convert to fraction form
    30,102.38/45,156.54 = 10,378.34/x
  3. Step 3: Cross multiply
    30,102.38x = 45,156.54 × 10,378.34
  4. Step 4: Simplify right side
    30,102.38x = 468,649,925.34
  5. Step 5: Solve for x
    x = 468,649,925.34/30,102.38
  6. Step 6: Final answer
    x = 15,568.53

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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.