Home / 30,180.32-45,240.34-15,141.49

Finding the Fourth Proportional to 30,180.32, 45,240.34 and 15,141.49

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Solution

The fourth proportional to 30,180.32, 45,240.34 and 15,141.49 is: 22,697.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,180.32 : 45,240.34 = 15,141.49 : x
  2. Step 2: Convert to fraction form
    30,180.32/45,240.34 = 15,141.49/x
  3. Step 3: Cross multiply
    30,180.32x = 45,240.34 × 15,141.49
  4. Step 4: Simplify right side
    30,180.32x = 685,006,155.71
  5. Step 5: Solve for x
    x = 685,006,155.71/30,180.32
  6. Step 6: Final answer
    x = 22,697.11

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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.