Home / 28,071.18-38,734.74-15,495.84

Finding the Fourth Proportional to 28,071.18, 38,734.74 and 15,495.84

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Solution

The fourth proportional to 28,071.18, 38,734.74 and 15,495.84 is: 21,382.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.18 : 38,734.74 = 15,495.84 : x
  2. Step 2: Convert to fraction form
    28,071.18/38,734.74 = 15,495.84/x
  3. Step 3: Cross multiply
    28,071.18x = 38,734.74 × 15,495.84
  4. Step 4: Simplify right side
    28,071.18x = 600,227,333.48
  5. Step 5: Solve for x
    x = 600,227,333.48/28,071.18
  6. Step 6: Final answer
    x = 21,382.33

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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.