Home / 39,056.43-53,897.76-21,151.43

Finding the Fourth Proportional to 39,056.43, 53,897.76 and 21,151.43

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Solution

The fourth proportional to 39,056.43, 53,897.76 and 21,151.43 is: 29,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,056.43 : 53,897.76 = 21,151.43 : x
  2. Step 2: Convert to fraction form
    39,056.43/53,897.76 = 21,151.43/x
  3. Step 3: Cross multiply
    39,056.43x = 53,897.76 × 21,151.43
  4. Step 4: Simplify right side
    39,056.43x = 1,140,014,697.80
  5. Step 5: Solve for x
    x = 1,140,014,697.80/39,056.43
  6. Step 6: Final answer
    x = 29,188.91

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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.