Home / 28,063.40-38,727.70-15,316.68

Finding the Fourth Proportional to 28,063.40, 38,727.70 and 15,316.68

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Solution

The fourth proportional to 28,063.40, 38,727.70 and 15,316.68 is: 21,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.40 : 38,727.70 = 15,316.68 : x
  2. Step 2: Convert to fraction form
    28,063.40/38,727.70 = 15,316.68/x
  3. Step 3: Cross multiply
    28,063.40x = 38,727.70 × 15,316.68
  4. Step 4: Simplify right side
    28,063.40x = 593,179,788.04
  5. Step 5: Solve for x
    x = 593,179,788.04/28,063.40
  6. Step 6: Final answer
    x = 21,137.13

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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.