Home / 39,457.64-54,450.64-21,552.72

Finding the Fourth Proportional to 39,457.64, 54,450.64 and 21,552.72

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Solution

The fourth proportional to 39,457.64, 54,450.64 and 21,552.72 is: 29,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,457.64 : 54,450.64 = 21,552.72 : x
  2. Step 2: Convert to fraction form
    39,457.64/54,450.64 = 21,552.72/x
  3. Step 3: Cross multiply
    39,457.64x = 54,450.64 × 21,552.72
  4. Step 4: Simplify right side
    39,457.64x = 1,173,559,424.68
  5. Step 5: Solve for x
    x = 1,173,559,424.68/39,457.64
  6. Step 6: Final answer
    x = 29,742.26

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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.