Home / 39,462.90-54,459.96-21,558.19

Finding the Fourth Proportional to 39,462.90, 54,459.96 and 21,558.19

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Solution

The fourth proportional to 39,462.90, 54,459.96 and 21,558.19 is: 29,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,462.90 : 54,459.96 = 21,558.19 : x
  2. Step 2: Convert to fraction form
    39,462.90/54,459.96 = 21,558.19/x
  3. Step 3: Cross multiply
    39,462.90x = 54,459.96 × 21,558.19
  4. Step 4: Simplify right side
    39,462.90x = 1,174,058,165.07
  5. Step 5: Solve for x
    x = 1,174,058,165.07/39,462.90
  6. Step 6: Final answer
    x = 29,750.93

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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.