Home / 28,065.32-38,744.72-20,503.16

Finding the Fourth Proportional to 28,065.32, 38,744.72 and 20,503.16

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Solution

The fourth proportional to 28,065.32, 38,744.72 and 20,503.16 is: 28,305.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065.32 : 38,744.72 = 20,503.16 : x
  2. Step 2: Convert to fraction form
    28,065.32/38,744.72 = 20,503.16/x
  3. Step 3: Cross multiply
    28,065.32x = 38,744.72 × 20,503.16
  4. Step 4: Simplify right side
    28,065.32x = 794,389,193.32
  5. Step 5: Solve for x
    x = 794,389,193.32/28,065.32
  6. Step 6: Final answer
    x = 28,305.01

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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.