Home / 20,749.53-31,124.28-7,602.93

Finding the Fourth Proportional to 20,749.53, 31,124.28 and 7,602.93

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Solution

The fourth proportional to 20,749.53, 31,124.28 and 7,602.93 is: 11,404.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.53 : 31,124.28 = 7,602.93 : x
  2. Step 2: Convert to fraction form
    20,749.53/31,124.28 = 7,602.93/x
  3. Step 3: Cross multiply
    20,749.53x = 31,124.28 × 7,602.93
  4. Step 4: Simplify right side
    20,749.53x = 236,635,750.65
  5. Step 5: Solve for x
    x = 236,635,750.65/20,749.53
  6. Step 6: Final answer
    x = 11,404.39

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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.