Home / 28,703.12-43,016.40-15,348.76

Finding the Fourth Proportional to 28,703.12, 43,016.40 and 15,348.76

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Solution

The fourth proportional to 28,703.12, 43,016.40 and 15,348.76 is: 23,002.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.12 : 43,016.40 = 15,348.76 : x
  2. Step 2: Convert to fraction form
    28,703.12/43,016.40 = 15,348.76/x
  3. Step 3: Cross multiply
    28,703.12x = 43,016.40 × 15,348.76
  4. Step 4: Simplify right side
    28,703.12x = 660,248,399.66
  5. Step 5: Solve for x
    x = 660,248,399.66/28,703.12
  6. Step 6: Final answer
    x = 23,002.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.