Home / 31,470.32-47,205.48-13,935.44

Finding the Fourth Proportional to 31,470.32, 47,205.48 and 13,935.44

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Solution

The fourth proportional to 31,470.32, 47,205.48 and 13,935.44 is: 20,903.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.32 : 47,205.48 = 13,935.44 : x
  2. Step 2: Convert to fraction form
    31,470.32/47,205.48 = 13,935.44/x
  3. Step 3: Cross multiply
    31,470.32x = 47,205.48 × 13,935.44
  4. Step 4: Simplify right side
    31,470.32x = 657,829,134.21
  5. Step 5: Solve for x
    x = 657,829,134.21/31,470.32
  6. Step 6: Final answer
    x = 20,903.16

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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.