Home / 30,117.78-45,182.43-10,395.54

Finding the Fourth Proportional to 30,117.78, 45,182.43 and 10,395.54

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Solution

The fourth proportional to 30,117.78, 45,182.43 and 10,395.54 is: 15,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.78 : 45,182.43 = 10,395.54 : x
  2. Step 2: Convert to fraction form
    30,117.78/45,182.43 = 10,395.54/x
  3. Step 3: Cross multiply
    30,117.78x = 45,182.43 × 10,395.54
  4. Step 4: Simplify right side
    30,117.78x = 469,695,758.36
  5. Step 5: Solve for x
    x = 469,695,758.36/30,117.78
  6. Step 6: Final answer
    x = 15,595.30

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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.