Home / 35,747.72-49,334.09-20,643.15

Finding the Fourth Proportional to 35,747.72, 49,334.09 and 20,643.15

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Solution

The fourth proportional to 35,747.72, 49,334.09 and 20,643.15 is: 28,488.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,747.72 : 49,334.09 = 20,643.15 : x
  2. Step 2: Convert to fraction form
    35,747.72/49,334.09 = 20,643.15/x
  3. Step 3: Cross multiply
    35,747.72x = 49,334.09 × 20,643.15
  4. Step 4: Simplify right side
    35,747.72x = 1,018,410,916.77
  5. Step 5: Solve for x
    x = 1,018,410,916.77/35,747.72
  6. Step 6: Final answer
    x = 28,488.84

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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.