Home / 28,069.32-38,750.28-20,507.16

Finding the Fourth Proportional to 28,069.32, 38,750.28 and 20,507.16

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Solution

The fourth proportional to 28,069.32, 38,750.28 and 20,507.16 is: 28,310.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.32 : 38,750.28 = 20,507.16 : x
  2. Step 2: Convert to fraction form
    28,069.32/38,750.28 = 20,507.16/x
  3. Step 3: Cross multiply
    28,069.32x = 38,750.28 × 20,507.16
  4. Step 4: Simplify right side
    28,069.32x = 794,658,192.00
  5. Step 5: Solve for x
    x = 794,658,192.00/28,069.32
  6. Step 6: Final answer
    x = 28,310.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.