Home / 47,005.71-70,515.15-13,728.23

Finding the Fourth Proportional to 47,005.71, 70,515.15 and 13,728.23

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Solution

The fourth proportional to 47,005.71, 70,515.15 and 13,728.23 is: 20,594.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,005.71 : 70,515.15 = 13,728.23 : x
  2. Step 2: Convert to fraction form
    47,005.71/70,515.15 = 13,728.23/x
  3. Step 3: Cross multiply
    47,005.71x = 70,515.15 × 13,728.23
  4. Step 4: Simplify right side
    47,005.71x = 968,048,197.68
  5. Step 5: Solve for x
    x = 968,048,197.68/47,005.71
  6. Step 6: Final answer
    x = 20,594.27

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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.