Home / 39,362.48-54,319.92-21,457.92

Finding the Fourth Proportional to 39,362.48, 54,319.92 and 21,457.92

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Solution

The fourth proportional to 39,362.48, 54,319.92 and 21,457.92 is: 29,611.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,362.48 : 54,319.92 = 21,457.92 : x
  2. Step 2: Convert to fraction form
    39,362.48/54,319.92 = 21,457.92/x
  3. Step 3: Cross multiply
    39,362.48x = 54,319.92 × 21,457.92
  4. Step 4: Simplify right side
    39,362.48x = 1,165,592,497.77
  5. Step 5: Solve for x
    x = 1,165,592,497.77/39,362.48
  6. Step 6: Final answer
    x = 29,611.76

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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.