Home / 35,637.12-49,178.52-19,720.64

Finding the Fourth Proportional to 35,637.12, 49,178.52 and 19,720.64

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Solution

The fourth proportional to 35,637.12, 49,178.52 and 19,720.64 is: 27,214.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,637.12 : 49,178.52 = 19,720.64 : x
  2. Step 2: Convert to fraction form
    35,637.12/49,178.52 = 19,720.64/x
  3. Step 3: Cross multiply
    35,637.12x = 49,178.52 × 19,720.64
  4. Step 4: Simplify right side
    35,637.12x = 969,831,888.65
  5. Step 5: Solve for x
    x = 969,831,888.65/35,637.12
  6. Step 6: Final answer
    x = 27,214.09

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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.