Home / 30,255.08-45,388.78-10,535.18

Finding the Fourth Proportional to 30,255.08, 45,388.78 and 10,535.18

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Solution

The fourth proportional to 30,255.08, 45,388.78 and 10,535.18 is: 15,804.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,255.08 : 45,388.78 = 10,535.18 : x
  2. Step 2: Convert to fraction form
    30,255.08/45,388.78 = 10,535.18/x
  3. Step 3: Cross multiply
    30,255.08x = 45,388.78 × 10,535.18
  4. Step 4: Simplify right side
    30,255.08x = 478,178,687.66
  5. Step 5: Solve for x
    x = 478,178,687.66/30,255.08
  6. Step 6: Final answer
    x = 15,804.91

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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.