Home / 35,889.78-49,529.52-20,783.10

Finding the Fourth Proportional to 35,889.78, 49,529.52 and 20,783.10

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Solution

The fourth proportional to 35,889.78, 49,529.52 and 20,783.10 is: 28,681.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,889.78 : 49,529.52 = 20,783.10 : x
  2. Step 2: Convert to fraction form
    35,889.78/49,529.52 = 20,783.10/x
  3. Step 3: Cross multiply
    35,889.78x = 49,529.52 × 20,783.10
  4. Step 4: Simplify right side
    35,889.78x = 1,029,376,967.11
  5. Step 5: Solve for x
    x = 1,029,376,967.11/35,889.78
  6. Step 6: Final answer
    x = 28,681.62

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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.