Home / 40,578.21-56,018.93-27,981.09

Finding the Fourth Proportional to 40,578.21, 56,018.93 and 27,981.09

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Solution

The fourth proportional to 40,578.21, 56,018.93 and 27,981.09 is: 38,628.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,578.21 : 56,018.93 = 27,981.09 : x
  2. Step 2: Convert to fraction form
    40,578.21/56,018.93 = 27,981.09/x
  3. Step 3: Cross multiply
    40,578.21x = 56,018.93 × 27,981.09
  4. Step 4: Simplify right side
    40,578.21x = 1,567,470,582.13
  5. Step 5: Solve for x
    x = 1,567,470,582.13/40,578.21
  6. Step 6: Final answer
    x = 38,628.38

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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.