Home / 31,515.24-47,291.24-11,807.64

Finding the Fourth Proportional to 31,515.24, 47,291.24 and 11,807.64

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Solution

The fourth proportional to 31,515.24, 47,291.24 and 11,807.64 is: 17,718.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.24 : 47,291.24 = 11,807.64 : x
  2. Step 2: Convert to fraction form
    31,515.24/47,291.24 = 11,807.64/x
  3. Step 3: Cross multiply
    31,515.24x = 47,291.24 × 11,807.64
  4. Step 4: Simplify right side
    31,515.24x = 558,397,937.07
  5. Step 5: Solve for x
    x = 558,397,937.07/31,515.24
  6. Step 6: Final answer
    x = 17,718.35

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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.