Home / 47,086.86-70,630.88-13,807.59

Finding the Fourth Proportional to 47,086.86, 70,630.88 and 13,807.59

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Solution

The fourth proportional to 47,086.86, 70,630.88 and 13,807.59 is: 20,711.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,086.86 : 70,630.88 = 13,807.59 : x
  2. Step 2: Convert to fraction form
    47,086.86/70,630.88 = 13,807.59/x
  3. Step 3: Cross multiply
    47,086.86x = 70,630.88 × 13,807.59
  4. Step 4: Simplify right side
    47,086.86x = 975,242,232.38
  5. Step 5: Solve for x
    x = 975,242,232.38/47,086.86
  6. Step 6: Final answer
    x = 20,711.56

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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.