Home / 31,470.24-47,205.40-13,002.72

Finding the Fourth Proportional to 31,470.24, 47,205.40 and 13,002.72

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Solution

The fourth proportional to 31,470.24, 47,205.40 and 13,002.72 is: 19,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.24 : 47,205.40 = 13,002.72 : x
  2. Step 2: Convert to fraction form
    31,470.24/47,205.40 = 13,002.72/x
  3. Step 3: Cross multiply
    31,470.24x = 47,205.40 × 13,002.72
  4. Step 4: Simplify right side
    31,470.24x = 613,798,598.69
  5. Step 5: Solve for x
    x = 613,798,598.69/31,470.24
  6. Step 6: Final answer
    x = 19,504.10

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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.