Home / 28,048.15-38,705.74-15,472.63

Finding the Fourth Proportional to 28,048.15, 38,705.74 and 15,472.63

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Solution

The fourth proportional to 28,048.15, 38,705.74 and 15,472.63 is: 21,351.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,048.15 : 38,705.74 = 15,472.63 : x
  2. Step 2: Convert to fraction form
    28,048.15/38,705.74 = 15,472.63/x
  3. Step 3: Cross multiply
    28,048.15x = 38,705.74 × 15,472.63
  4. Step 4: Simplify right side
    28,048.15x = 598,879,593.90
  5. Step 5: Solve for x
    x = 598,879,593.90/28,048.15
  6. Step 6: Final answer
    x = 21,351.84

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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.