Home / 30,234.39-45,356.28-15,435.30

Finding the Fourth Proportional to 30,234.39, 45,356.28 and 15,435.30

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Solution

The fourth proportional to 30,234.39, 45,356.28 and 15,435.30 is: 23,155.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,234.39 : 45,356.28 = 15,435.30 : x
  2. Step 2: Convert to fraction form
    30,234.39/45,356.28 = 15,435.30/x
  3. Step 3: Cross multiply
    30,234.39x = 45,356.28 × 15,435.30
  4. Step 4: Simplify right side
    30,234.39x = 700,087,788.68
  5. Step 5: Solve for x
    x = 700,087,788.68/30,234.39
  6. Step 6: Final answer
    x = 23,155.35

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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.