Home / 35,756.40-49,343.68-19,840.81

Finding the Fourth Proportional to 35,756.40, 49,343.68 and 19,840.81

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Solution

The fourth proportional to 35,756.40, 49,343.68 and 19,840.81 is: 27,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,756.40 : 49,343.68 = 19,840.81 : x
  2. Step 2: Convert to fraction form
    35,756.40/49,343.68 = 19,840.81/x
  3. Step 3: Cross multiply
    35,756.40x = 49,343.68 × 19,840.81
  4. Step 4: Simplify right side
    35,756.40x = 979,018,579.58
  5. Step 5: Solve for x
    x = 979,018,579.58/35,756.40
  6. Step 6: Final answer
    x = 27,380.23

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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.