Home / 13,900.55-20,852.87-4,038.54

Finding the Fourth Proportional to 13,900.55, 20,852.87 and 4,038.54

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Solution

The fourth proportional to 13,900.55, 20,852.87 and 4,038.54 is: 6,058.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.55 : 20,852.87 = 4,038.54 : x
  2. Step 2: Convert to fraction form
    13,900.55/20,852.87 = 4,038.54/x
  3. Step 3: Cross multiply
    13,900.55x = 20,852.87 × 4,038.54
  4. Step 4: Simplify right side
    13,900.55x = 84,215,051.22
  5. Step 5: Solve for x
    x = 84,215,051.22/13,900.55
  6. Step 6: Final answer
    x = 6,058.40

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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.