Home / 39,362.59-54,320.22-21,457.54

Finding the Fourth Proportional to 39,362.59, 54,320.22 and 21,457.54

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Solution

The fourth proportional to 39,362.59, 54,320.22 and 21,457.54 is: 29,611.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,362.59 : 54,320.22 = 21,457.54 : x
  2. Step 2: Convert to fraction form
    39,362.59/54,320.22 = 21,457.54/x
  3. Step 3: Cross multiply
    39,362.59x = 54,320.22 × 21,457.54
  4. Step 4: Simplify right side
    39,362.59x = 1,165,578,293.46
  5. Step 5: Solve for x
    x = 1,165,578,293.46/39,362.59
  6. Step 6: Final answer
    x = 29,611.32

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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.