Home / 39,455.02-54,449.22-21,551.08

Finding the Fourth Proportional to 39,455.02, 54,449.22 and 21,551.08

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Solution

The fourth proportional to 39,455.02, 54,449.22 and 21,551.08 is: 29,741.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,455.02 : 54,449.22 = 21,551.08 : x
  2. Step 2: Convert to fraction form
    39,455.02/54,449.22 = 21,551.08/x
  3. Step 3: Cross multiply
    39,455.02x = 54,449.22 × 21,551.08
  4. Step 4: Simplify right side
    39,455.02x = 1,173,439,496.16
  5. Step 5: Solve for x
    x = 1,173,439,496.16/39,455.02
  6. Step 6: Final answer
    x = 29,741.20

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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.