Home / 28,734.28-39,653.79-15,988.48

Finding the Fourth Proportional to 28,734.28, 39,653.79 and 15,988.48

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Solution

The fourth proportional to 28,734.28, 39,653.79 and 15,988.48 is: 22,064.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,734.28 : 39,653.79 = 15,988.48 : x
  2. Step 2: Convert to fraction form
    28,734.28/39,653.79 = 15,988.48/x
  3. Step 3: Cross multiply
    28,734.28x = 39,653.79 × 15,988.48
  4. Step 4: Simplify right side
    28,734.28x = 634,003,828.34
  5. Step 5: Solve for x
    x = 634,003,828.34/28,734.28
  6. Step 6: Final answer
    x = 22,064.37

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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.