Home / 28,343.30-39,116.31-15,599.03

Finding the Fourth Proportional to 28,343.30, 39,116.31 and 15,599.03

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Solution

The fourth proportional to 28,343.30, 39,116.31 and 15,599.03 is: 21,528.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.30 : 39,116.31 = 15,599.03 : x
  2. Step 2: Convert to fraction form
    28,343.30/39,116.31 = 15,599.03/x
  3. Step 3: Cross multiply
    28,343.30x = 39,116.31 × 15,599.03
  4. Step 4: Simplify right side
    28,343.30x = 610,176,493.18
  5. Step 5: Solve for x
    x = 610,176,493.18/28,343.30
  6. Step 6: Final answer
    x = 21,528.07

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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.