Home / 35,931.72-49,612.50-21,803.70

Finding the Fourth Proportional to 35,931.72, 49,612.50 and 21,803.70

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Solution

The fourth proportional to 35,931.72, 49,612.50 and 21,803.70 is: 30,105.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,931.72 : 49,612.50 = 21,803.70 : x
  2. Step 2: Convert to fraction form
    35,931.72/49,612.50 = 21,803.70/x
  3. Step 3: Cross multiply
    35,931.72x = 49,612.50 × 21,803.70
  4. Step 4: Simplify right side
    35,931.72x = 1,081,736,066.25
  5. Step 5: Solve for x
    x = 1,081,736,066.25/35,931.72
  6. Step 6: Final answer
    x = 30,105.32

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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.