Home / 39,462.33-54,459.18-21,557.63

Finding the Fourth Proportional to 39,462.33, 54,459.18 and 21,557.63

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Solution

The fourth proportional to 39,462.33, 54,459.18 and 21,557.63 is: 29,750.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,462.33 : 54,459.18 = 21,557.63 : x
  2. Step 2: Convert to fraction form
    39,462.33/54,459.18 = 21,557.63/x
  3. Step 3: Cross multiply
    39,462.33x = 54,459.18 × 21,557.63
  4. Step 4: Simplify right side
    39,462.33x = 1,174,010,852.54
  5. Step 5: Solve for x
    x = 1,174,010,852.54/39,462.33
  6. Step 6: Final answer
    x = 29,750.17

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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.