Home / 35,477.50-48,937.26-21,127.78

Finding the Fourth Proportional to 35,477.50, 48,937.26 and 21,127.78

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Solution

The fourth proportional to 35,477.50, 48,937.26 and 21,127.78 is: 29,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,477.50 : 48,937.26 = 21,127.78 : x
  2. Step 2: Convert to fraction form
    35,477.50/48,937.26 = 21,127.78/x
  3. Step 3: Cross multiply
    35,477.50x = 48,937.26 × 21,127.78
  4. Step 4: Simplify right side
    35,477.50x = 1,033,935,663.08
  5. Step 5: Solve for x
    x = 1,033,935,663.08/35,477.50
  6. Step 6: Final answer
    x = 29,143.42

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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.