Home / 13,820.01-20,629.46-12,070.41

Finding the Fourth Proportional to 13,820.01, 20,629.46 and 12,070.41

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Solution

The fourth proportional to 13,820.01, 20,629.46 and 12,070.41 is: 18,017.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.01 : 20,629.46 = 12,070.41 : x
  2. Step 2: Convert to fraction form
    13,820.01/20,629.46 = 12,070.41/x
  3. Step 3: Cross multiply
    13,820.01x = 20,629.46 × 12,070.41
  4. Step 4: Simplify right side
    13,820.01x = 249,006,040.28
  5. Step 5: Solve for x
    x = 249,006,040.28/13,820.01
  6. Step 6: Final answer
    x = 18,017.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.