Home / 31,378.02-47,075.19-11,662.26

Finding the Fourth Proportional to 31,378.02, 47,075.19 and 11,662.26

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Solution

The fourth proportional to 31,378.02, 47,075.19 and 11,662.26 is: 17,496.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.02 : 47,075.19 = 11,662.26 : x
  2. Step 2: Convert to fraction form
    31,378.02/47,075.19 = 11,662.26/x
  3. Step 3: Cross multiply
    31,378.02x = 47,075.19 × 11,662.26
  4. Step 4: Simplify right side
    31,378.02x = 549,003,105.33
  5. Step 5: Solve for x
    x = 549,003,105.33/31,378.02
  6. Step 6: Final answer
    x = 17,496.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.