Home / 31,427.13-43,369.64-17,280.48

Finding the Fourth Proportional to 31,427.13, 43,369.64 and 17,280.48

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Solution

The fourth proportional to 31,427.13, 43,369.64 and 17,280.48 is: 23,847.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.13 : 43,369.64 = 17,280.48 : x
  2. Step 2: Convert to fraction form
    31,427.13/43,369.64 = 17,280.48/x
  3. Step 3: Cross multiply
    31,427.13x = 43,369.64 × 17,280.48
  4. Step 4: Simplify right side
    31,427.13x = 749,448,196.63
  5. Step 5: Solve for x
    x = 749,448,196.63/31,427.13
  6. Step 6: Final answer
    x = 23,847.17

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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.