Home / 29,578.48-40,812.36-18,827.68

Finding the Fourth Proportional to 29,578.48, 40,812.36 and 18,827.68

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Solution

The fourth proportional to 29,578.48, 40,812.36 and 18,827.68 is: 25,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,578.48 : 40,812.36 = 18,827.68 : x
  2. Step 2: Convert to fraction form
    29,578.48/40,812.36 = 18,827.68/x
  3. Step 3: Cross multiply
    29,578.48x = 40,812.36 × 18,827.68
  4. Step 4: Simplify right side
    29,578.48x = 768,402,054.12
  5. Step 5: Solve for x
    x = 768,402,054.12/29,578.48
  6. Step 6: Final answer
    x = 25,978.42

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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.