Home / 40,422.47-55,379.04-38,907.36

Finding the Fourth Proportional to 40,422.47, 55,379.04 and 38,907.36

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Solution

The fourth proportional to 40,422.47, 55,379.04 and 38,907.36 is: 53,303.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,422.47 : 55,379.04 = 38,907.36 : x
  2. Step 2: Convert to fraction form
    40,422.47/55,379.04 = 38,907.36/x
  3. Step 3: Cross multiply
    40,422.47x = 55,379.04 × 38,907.36
  4. Step 4: Simplify right side
    40,422.47x = 2,154,651,968.84
  5. Step 5: Solve for x
    x = 2,154,651,968.84/40,422.47
  6. Step 6: Final answer
    x = 53,303.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.