Home / 28,224.20-38,951.78-15,653

Finding the Fourth Proportional to 28,224.20, 38,951.78 and 15,653

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Solution

The fourth proportional to 28,224.20, 38,951.78 and 15,653 is: 21,602.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224.20 : 38,951.78 = 15,653 : x
  2. Step 2: Convert to fraction form
    28,224.20/38,951.78 = 15,653/x
  3. Step 3: Cross multiply
    28,224.20x = 38,951.78 × 15,653
  4. Step 4: Simplify right side
    28,224.20x = 609,712,212.34
  5. Step 5: Solve for x
    x = 609,712,212.34/28,224.20
  6. Step 6: Final answer
    x = 21,602.46

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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.