Home / 40,857.21-56,403.95-28,260.09

Finding the Fourth Proportional to 40,857.21, 56,403.95 and 28,260.09

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Solution

The fourth proportional to 40,857.21, 56,403.95 and 28,260.09 is: 39,013.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,857.21 : 56,403.95 = 28,260.09 : x
  2. Step 2: Convert to fraction form
    40,857.21/56,403.95 = 28,260.09/x
  3. Step 3: Cross multiply
    40,857.21x = 56,403.95 × 28,260.09
  4. Step 4: Simplify right side
    40,857.21x = 1,593,980,562.06
  5. Step 5: Solve for x
    x = 1,593,980,562.06/40,857.21
  6. Step 6: Final answer
    x = 39,013.45

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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.