Home / 28,250.96-38,988.47-15,675.71

Finding the Fourth Proportional to 28,250.96, 38,988.47 and 15,675.71

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Solution

The fourth proportional to 28,250.96, 38,988.47 and 15,675.71 is: 21,633.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.96 : 38,988.47 = 15,675.71 : x
  2. Step 2: Convert to fraction form
    28,250.96/38,988.47 = 15,675.71/x
  3. Step 3: Cross multiply
    28,250.96x = 38,988.47 × 15,675.71
  4. Step 4: Simplify right side
    28,250.96x = 611,171,793.31
  5. Step 5: Solve for x
    x = 611,171,793.31/28,250.96
  6. Step 6: Final answer
    x = 21,633.67

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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.