Home / 40,319.10-55,643.72-22,415.77

Finding the Fourth Proportional to 40,319.10, 55,643.72 and 22,415.77

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Solution

The fourth proportional to 40,319.10, 55,643.72 and 22,415.77 is: 30,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,319.10 : 55,643.72 = 22,415.77 : x
  2. Step 2: Convert to fraction form
    40,319.10/55,643.72 = 22,415.77/x
  3. Step 3: Cross multiply
    40,319.10x = 55,643.72 × 22,415.77
  4. Step 4: Simplify right side
    40,319.10x = 1,247,296,955.06
  5. Step 5: Solve for x
    x = 1,247,296,955.06/40,319.10
  6. Step 6: Final answer
    x = 30,935.63

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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.