Home / 28,971.52-39,918.96-19,523.68

Finding the Fourth Proportional to 28,971.52, 39,918.96 and 19,523.68

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Solution

The fourth proportional to 28,971.52, 39,918.96 and 19,523.68 is: 26,901.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.52 : 39,918.96 = 19,523.68 : x
  2. Step 2: Convert to fraction form
    28,971.52/39,918.96 = 19,523.68/x
  3. Step 3: Cross multiply
    28,971.52x = 39,918.96 × 19,523.68
  4. Step 4: Simplify right side
    28,971.52x = 779,365,000.97
  5. Step 5: Solve for x
    x = 779,365,000.97/28,971.52
  6. Step 6: Final answer
    x = 26,901.07

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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.