Home / 28,236.48-38,973.96-17,619.72

Finding the Fourth Proportional to 28,236.48, 38,973.96 and 17,619.72

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Solution

The fourth proportional to 28,236.48, 38,973.96 and 17,619.72 is: 24,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.48 : 38,973.96 = 17,619.72 : x
  2. Step 2: Convert to fraction form
    28,236.48/38,973.96 = 17,619.72/x
  3. Step 3: Cross multiply
    28,236.48x = 38,973.96 × 17,619.72
  4. Step 4: Simplify right side
    28,236.48x = 686,710,262.49
  5. Step 5: Solve for x
    x = 686,710,262.49/28,236.48
  6. Step 6: Final answer
    x = 24,319.97

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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.