Home / 20,753.35-31,111.53-7,602.64

Finding the Fourth Proportional to 20,753.35, 31,111.53 and 7,602.64

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Solution

The fourth proportional to 20,753.35, 31,111.53 and 7,602.64 is: 11,397.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.35 : 31,111.53 = 7,602.64 : x
  2. Step 2: Convert to fraction form
    20,753.35/31,111.53 = 7,602.64/x
  3. Step 3: Cross multiply
    20,753.35x = 31,111.53 × 7,602.64
  4. Step 4: Simplify right side
    20,753.35x = 236,529,863.23
  5. Step 5: Solve for x
    x = 236,529,863.23/20,753.35
  6. Step 6: Final answer
    x = 11,397.19

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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.