Home / 39,266.16-54,186.74-21,361.32

Finding the Fourth Proportional to 39,266.16, 54,186.74 and 21,361.32

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Solution

The fourth proportional to 39,266.16, 54,186.74 and 21,361.32 is: 29,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,266.16 : 54,186.74 = 21,361.32 : x
  2. Step 2: Convert to fraction form
    39,266.16/54,186.74 = 21,361.32/x
  3. Step 3: Cross multiply
    39,266.16x = 54,186.74 × 21,361.32
  4. Step 4: Simplify right side
    39,266.16x = 1,157,500,292.90
  5. Step 5: Solve for x
    x = 1,157,500,292.90/39,266.16
  6. Step 6: Final answer
    x = 29,478.32

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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.