Home / 30,180.29-45,270.44-10,458.86

Finding the Fourth Proportional to 30,180.29, 45,270.44 and 10,458.86

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Solution

The fourth proportional to 30,180.29, 45,270.44 and 10,458.86 is: 15,688.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,180.29 : 45,270.44 = 10,458.86 : x
  2. Step 2: Convert to fraction form
    30,180.29/45,270.44 = 10,458.86/x
  3. Step 3: Cross multiply
    30,180.29x = 45,270.44 × 10,458.86
  4. Step 4: Simplify right side
    30,180.29x = 473,476,915.45
  5. Step 5: Solve for x
    x = 473,476,915.45/30,180.29
  6. Step 6: Final answer
    x = 15,688.29

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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.