Home / 39,064.60-53,909.28-21,159.56

Finding the Fourth Proportional to 39,064.60, 53,909.28 and 21,159.56

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Solution

The fourth proportional to 39,064.60, 53,909.28 and 21,159.56 is: 29,200.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,064.60 : 53,909.28 = 21,159.56 : x
  2. Step 2: Convert to fraction form
    39,064.60/53,909.28 = 21,159.56/x
  3. Step 3: Cross multiply
    39,064.60x = 53,909.28 × 21,159.56
  4. Step 4: Simplify right side
    39,064.60x = 1,140,696,644.72
  5. Step 5: Solve for x
    x = 1,140,696,644.72/39,064.60
  6. Step 6: Final answer
    x = 29,200.26

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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.