Home / 27,742.16-38,282.21-15,803.30

Finding the Fourth Proportional to 27,742.16, 38,282.21 and 15,803.30

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Solution

The fourth proportional to 27,742.16, 38,282.21 and 15,803.30 is: 21,807.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,742.16 : 38,282.21 = 15,803.30 : x
  2. Step 2: Convert to fraction form
    27,742.16/38,282.21 = 15,803.30/x
  3. Step 3: Cross multiply
    27,742.16x = 38,282.21 × 15,803.30
  4. Step 4: Simplify right side
    27,742.16x = 604,985,249.29
  5. Step 5: Solve for x
    x = 604,985,249.29/27,742.16
  6. Step 6: Final answer
    x = 21,807.43

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Double scale
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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.