Home / 19,051.18-28,620.63-13,518.22

Finding the Fourth Proportional to 19,051.18, 28,620.63 and 13,518.22

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Solution

The fourth proportional to 19,051.18, 28,620.63 and 13,518.22 is: 20,308.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,051.18 : 28,620.63 = 13,518.22 : x
  2. Step 2: Convert to fraction form
    19,051.18/28,620.63 = 13,518.22/x
  3. Step 3: Cross multiply
    19,051.18x = 28,620.63 × 13,518.22
  4. Step 4: Simplify right side
    19,051.18x = 386,899,972.88
  5. Step 5: Solve for x
    x = 386,899,972.88/19,051.18
  6. Step 6: Final answer
    x = 20,308.45

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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.