Home / 47,149.32-70,735.19-13,870.47

Finding the Fourth Proportional to 47,149.32, 70,735.19 and 13,870.47

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Solution

The fourth proportional to 47,149.32, 70,735.19 and 13,870.47 is: 20,809.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,149.32 : 70,735.19 = 13,870.47 : x
  2. Step 2: Convert to fraction form
    47,149.32/70,735.19 = 13,870.47/x
  3. Step 3: Cross multiply
    47,149.32x = 70,735.19 × 13,870.47
  4. Step 4: Simplify right side
    47,149.32x = 981,130,261.49
  5. Step 5: Solve for x
    x = 981,130,261.49/47,149.32
  6. Step 6: Final answer
    x = 20,809.00

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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.