Home / 31,965.36-47,927.28-13,240.32

Finding the Fourth Proportional to 31,965.36, 47,927.28 and 13,240.32

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Solution

The fourth proportional to 31,965.36, 47,927.28 and 13,240.32 is: 19,851.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,965.36 : 47,927.28 = 13,240.32 : x
  2. Step 2: Convert to fraction form
    31,965.36/47,927.28 = 13,240.32/x
  3. Step 3: Cross multiply
    31,965.36x = 47,927.28 × 13,240.32
  4. Step 4: Simplify right side
    31,965.36x = 634,572,523.93
  5. Step 5: Solve for x
    x = 634,572,523.93/31,965.36
  6. Step 6: Final answer
    x = 19,851.88

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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.