Home / 47,107.77-70,662.06-13,828.38

Finding the Fourth Proportional to 47,107.77, 70,662.06 and 13,828.38

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Solution

The fourth proportional to 47,107.77, 70,662.06 and 13,828.38 is: 20,742.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,107.77 : 70,662.06 = 13,828.38 : x
  2. Step 2: Convert to fraction form
    47,107.77/70,662.06 = 13,828.38/x
  3. Step 3: Cross multiply
    47,107.77x = 70,662.06 × 13,828.38
  4. Step 4: Simplify right side
    47,107.77x = 977,141,817.26
  5. Step 5: Solve for x
    x = 977,141,817.26/47,107.77
  6. Step 6: Final answer
    x = 20,742.69

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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.