Home / 47,140.03-70,710.02-13,860.37

Finding the Fourth Proportional to 47,140.03, 70,710.02 and 13,860.37

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Solution

The fourth proportional to 47,140.03, 70,710.02 and 13,860.37 is: 20,790.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,140.03 : 70,710.02 = 13,860.37 : x
  2. Step 2: Convert to fraction form
    47,140.03/70,710.02 = 13,860.37/x
  3. Step 3: Cross multiply
    47,140.03x = 70,710.02 × 13,860.37
  4. Step 4: Simplify right side
    47,140.03x = 980,066,617.06
  5. Step 5: Solve for x
    x = 980,066,617.06/47,140.03
  6. Step 6: Final answer
    x = 20,790.54

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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.