Home / 47,059.90-70,584.69-13,780.30

Finding the Fourth Proportional to 47,059.90, 70,584.69 and 13,780.30

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Solution

The fourth proportional to 47,059.90, 70,584.69 and 13,780.30 is: 20,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,059.90 : 70,584.69 = 13,780.30 : x
  2. Step 2: Convert to fraction form
    47,059.90/70,584.69 = 13,780.30/x
  3. Step 3: Cross multiply
    47,059.90x = 70,584.69 × 13,780.30
  4. Step 4: Simplify right side
    47,059.90x = 972,677,958.24
  5. Step 5: Solve for x
    x = 972,677,958.24/47,059.90
  6. Step 6: Final answer
    x = 20,668.93

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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.