Home / 31,838.64-47,767.96-13,127.49

Finding the Fourth Proportional to 31,838.64, 47,767.96 and 13,127.49

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Solution

The fourth proportional to 31,838.64, 47,767.96 and 13,127.49 is: 19,695.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,838.64 : 47,767.96 = 13,127.49 : x
  2. Step 2: Convert to fraction form
    31,838.64/47,767.96 = 13,127.49/x
  3. Step 3: Cross multiply
    31,838.64x = 47,767.96 × 13,127.49
  4. Step 4: Simplify right side
    31,838.64x = 627,073,417.22
  5. Step 5: Solve for x
    x = 627,073,417.22/31,838.64
  6. Step 6: Final answer
    x = 19,695.36

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1.5x scale

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.