Home / 20,848.72-31,272.81-5,053.89

Finding the Fourth Proportional to 20,848.72, 31,272.81 and 5,053.89

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Solution

The fourth proportional to 20,848.72, 31,272.81 and 5,053.89 is: 7,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.72 : 31,272.81 = 5,053.89 : x
  2. Step 2: Convert to fraction form
    20,848.72/31,272.81 = 5,053.89/x
  3. Step 3: Cross multiply
    20,848.72x = 31,272.81 × 5,053.89
  4. Step 4: Simplify right side
    20,848.72x = 158,049,459.00
  5. Step 5: Solve for x
    x = 158,049,459.00/20,848.72
  6. Step 6: Final answer
    x = 7,580.77

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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.