Home / 28,509.06-42,764.34-13,512.66

Finding the Fourth Proportional to 28,509.06, 42,764.34 and 13,512.66

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Solution

The fourth proportional to 28,509.06, 42,764.34 and 13,512.66 is: 20,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.06 : 42,764.34 = 13,512.66 : x
  2. Step 2: Convert to fraction form
    28,509.06/42,764.34 = 13,512.66/x
  3. Step 3: Cross multiply
    28,509.06x = 42,764.34 × 13,512.66
  4. Step 4: Simplify right side
    28,509.06x = 577,859,986.54
  5. Step 5: Solve for x
    x = 577,859,986.54/28,509.06
  6. Step 6: Final answer
    x = 20,269.35

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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.