Home / 20,747.22-28,597.70-14,030.40

Finding the Fourth Proportional to 20,747.22, 28,597.70 and 14,030.40

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Solution

The fourth proportional to 20,747.22, 28,597.70 and 14,030.40 is: 19,339.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.22 : 28,597.70 = 14,030.40 : x
  2. Step 2: Convert to fraction form
    20,747.22/28,597.70 = 14,030.40/x
  3. Step 3: Cross multiply
    20,747.22x = 28,597.70 × 14,030.40
  4. Step 4: Simplify right side
    20,747.22x = 401,237,099.93
  5. Step 5: Solve for x
    x = 401,237,099.93/20,747.22
  6. Step 6: Final answer
    x = 19,339.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.