Home / 31,603.84-43,580.64-27,142.40

Finding the Fourth Proportional to 31,603.84, 43,580.64 and 27,142.40

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Solution

The fourth proportional to 31,603.84, 43,580.64 and 27,142.40 is: 37,428.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,603.84 : 43,580.64 = 27,142.40 : x
  2. Step 2: Convert to fraction form
    31,603.84/43,580.64 = 27,142.40/x
  3. Step 3: Cross multiply
    31,603.84x = 43,580.64 × 27,142.40
  4. Step 4: Simplify right side
    31,603.84x = 1,182,883,163.14
  5. Step 5: Solve for x
    x = 1,182,883,163.14/31,603.84
  6. Step 6: Final answer
    x = 37,428.46

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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.