Home / 28,063.04-38,725.36-15,487.76

Finding the Fourth Proportional to 28,063.04, 38,725.36 and 15,487.76

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Solution

The fourth proportional to 28,063.04, 38,725.36 and 15,487.76 is: 21,372.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.04 : 38,725.36 = 15,487.76 : x
  2. Step 2: Convert to fraction form
    28,063.04/38,725.36 = 15,487.76/x
  3. Step 3: Cross multiply
    28,063.04x = 38,725.36 × 15,487.76
  4. Step 4: Simplify right side
    28,063.04x = 599,769,081.59
  5. Step 5: Solve for x
    x = 599,769,081.59/28,063.04
  6. Step 6: Final answer
    x = 21,372.21

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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.