Home / 20,215.16-30,322.84-7,058.30

Finding the Fourth Proportional to 20,215.16, 30,322.84 and 7,058.30

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Solution

The fourth proportional to 20,215.16, 30,322.84 and 7,058.30 is: 10,587.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.16 : 30,322.84 = 7,058.30 : x
  2. Step 2: Convert to fraction form
    20,215.16/30,322.84 = 7,058.30/x
  3. Step 3: Cross multiply
    20,215.16x = 30,322.84 × 7,058.30
  4. Step 4: Simplify right side
    20,215.16x = 214,027,701.57
  5. Step 5: Solve for x
    x = 214,027,701.57/20,215.16
  6. Step 6: Final answer
    x = 10,587.48

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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.