Home / 20,256.30-30,397.77-7,108.32

Finding the Fourth Proportional to 20,256.30, 30,397.77 and 7,108.32

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Solution

The fourth proportional to 20,256.30, 30,397.77 and 7,108.32 is: 10,667.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.30 : 30,397.77 = 7,108.32 : x
  2. Step 2: Convert to fraction form
    20,256.30/30,397.77 = 7,108.32/x
  3. Step 3: Cross multiply
    20,256.30x = 30,397.77 × 7,108.32
  4. Step 4: Simplify right side
    20,256.30x = 216,077,040.90
  5. Step 5: Solve for x
    x = 216,077,040.90/20,256.30
  6. Step 6: Final answer
    x = 10,667.16

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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.