Home / 28,752.78-43,126.32-9,030.81

Finding the Fourth Proportional to 28,752.78, 43,126.32 and 9,030.81

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Solution

The fourth proportional to 28,752.78, 43,126.32 and 9,030.81 is: 13,545.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752.78 : 43,126.32 = 9,030.81 : x
  2. Step 2: Convert to fraction form
    28,752.78/43,126.32 = 9,030.81/x
  3. Step 3: Cross multiply
    28,752.78x = 43,126.32 × 9,030.81
  4. Step 4: Simplify right side
    28,752.78x = 389,465,601.92
  5. Step 5: Solve for x
    x = 389,465,601.92/28,752.78
  6. Step 6: Final answer
    x = 13,545.32

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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.