Home / 39,064.76-53,909.27-21,159.81

Finding the Fourth Proportional to 39,064.76, 53,909.27 and 21,159.81

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Solution

The fourth proportional to 39,064.76, 53,909.27 and 21,159.81 is: 29,200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,064.76 : 53,909.27 = 21,159.81 : x
  2. Step 2: Convert to fraction form
    39,064.76/53,909.27 = 21,159.81/x
  3. Step 3: Cross multiply
    39,064.76x = 53,909.27 × 21,159.81
  4. Step 4: Simplify right side
    39,064.76x = 1,140,709,910.44
  5. Step 5: Solve for x
    x = 1,140,709,910.44/39,064.76
  6. Step 6: Final answer
    x = 29,200.48

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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.