Home / 39,320.37-54,261.83-21,415.32

Finding the Fourth Proportional to 39,320.37, 54,261.83 and 21,415.32

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Solution

The fourth proportional to 39,320.37, 54,261.83 and 21,415.32 is: 29,552.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,320.37 : 54,261.83 = 21,415.32 : x
  2. Step 2: Convert to fraction form
    39,320.37/54,261.83 = 21,415.32/x
  3. Step 3: Cross multiply
    39,320.37x = 54,261.83 × 21,415.32
  4. Step 4: Simplify right side
    39,320.37x = 1,162,034,506.77
  5. Step 5: Solve for x
    x = 1,162,034,506.77/39,320.37
  6. Step 6: Final answer
    x = 29,552.99

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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.