Home / 39,056.09-53,897.13-21,150.68

Finding the Fourth Proportional to 39,056.09, 53,897.13 and 21,150.68

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Solution

The fourth proportional to 39,056.09, 53,897.13 and 21,150.68 is: 29,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,056.09 : 53,897.13 = 21,150.68 : x
  2. Step 2: Convert to fraction form
    39,056.09/53,897.13 = 21,150.68/x
  3. Step 3: Cross multiply
    39,056.09x = 53,897.13 × 21,150.68
  4. Step 4: Simplify right side
    39,056.09x = 1,139,960,949.55
  5. Step 5: Solve for x
    x = 1,139,960,949.55/39,056.09
  6. Step 6: Final answer
    x = 29,187.79

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1.5x scale

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.