Home / 47,142.32-70,725.62-13,863.47

Finding the Fourth Proportional to 47,142.32, 70,725.62 and 13,863.47

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Solution

The fourth proportional to 47,142.32, 70,725.62 and 13,863.47 is: 20,798.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,142.32 : 70,725.62 = 13,863.47 : x
  2. Step 2: Convert to fraction form
    47,142.32/70,725.62 = 13,863.47/x
  3. Step 3: Cross multiply
    47,142.32x = 70,725.62 × 13,863.47
  4. Step 4: Simplify right side
    47,142.32x = 980,502,192.13
  5. Step 5: Solve for x
    x = 980,502,192.13/47,142.32
  6. Step 6: Final answer
    x = 20,798.77

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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.