Home / 28,079.82-38,749.90-15,332.94

Finding the Fourth Proportional to 28,079.82, 38,749.90 and 15,332.94

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Solution

The fourth proportional to 28,079.82, 38,749.90 and 15,332.94 is: 21,159.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079.82 : 38,749.90 = 15,332.94 : x
  2. Step 2: Convert to fraction form
    28,079.82/38,749.90 = 15,332.94/x
  3. Step 3: Cross multiply
    28,079.82x = 38,749.90 × 15,332.94
  4. Step 4: Simplify right side
    28,079.82x = 594,149,853.37
  5. Step 5: Solve for x
    x = 594,149,853.37/28,079.82
  6. Step 6: Final answer
    x = 21,159.32

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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.