Home / 38,160.72-52,656.78-21,164.76

Finding the Fourth Proportional to 38,160.72, 52,656.78 and 21,164.76

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Solution

The fourth proportional to 38,160.72, 52,656.78 and 21,164.76 is: 29,204.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,160.72 : 52,656.78 = 21,164.76 : x
  2. Step 2: Convert to fraction form
    38,160.72/52,656.78 = 21,164.76/x
  3. Step 3: Cross multiply
    38,160.72x = 52,656.78 × 21,164.76
  4. Step 4: Simplify right side
    38,160.72x = 1,114,468,111.07
  5. Step 5: Solve for x
    x = 1,114,468,111.07/38,160.72
  6. Step 6: Final answer
    x = 29,204.59

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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.