Home / 28,256.16-42,362.64-17,145.12

Finding the Fourth Proportional to 28,256.16, 42,362.64 and 17,145.12

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Solution

The fourth proportional to 28,256.16, 42,362.64 and 17,145.12 is: 25,704.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256.16 : 42,362.64 = 17,145.12 : x
  2. Step 2: Convert to fraction form
    28,256.16/42,362.64 = 17,145.12/x
  3. Step 3: Cross multiply
    28,256.16x = 42,362.64 × 17,145.12
  4. Step 4: Simplify right side
    28,256.16x = 726,312,546.32
  5. Step 5: Solve for x
    x = 726,312,546.32/28,256.16
  6. Step 6: Final answer
    x = 25,704.57

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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.