Home / 13,890.72-20,840.96-4,030.59

Finding the Fourth Proportional to 13,890.72, 20,840.96 and 4,030.59

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Solution

The fourth proportional to 13,890.72, 20,840.96 and 4,030.59 is: 6,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.72 : 20,840.96 = 4,030.59 : x
  2. Step 2: Convert to fraction form
    13,890.72/20,840.96 = 4,030.59/x
  3. Step 3: Cross multiply
    13,890.72x = 20,840.96 × 4,030.59
  4. Step 4: Simplify right side
    13,890.72x = 84,001,364.97
  5. Step 5: Solve for x
    x = 84,001,364.97/13,890.72
  6. Step 6: Final answer
    x = 6,047.30

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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.