Home / 18,973.12-28,415.41-14,997.69

Finding the Fourth Proportional to 18,973.12, 28,415.41 and 14,997.69

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Solution

The fourth proportional to 18,973.12, 28,415.41 and 14,997.69 is: 22,461.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,973.12 : 28,415.41 = 14,997.69 : x
  2. Step 2: Convert to fraction form
    18,973.12/28,415.41 = 14,997.69/x
  3. Step 3: Cross multiply
    18,973.12x = 28,415.41 × 14,997.69
  4. Step 4: Simplify right side
    18,973.12x = 426,165,616.51
  5. Step 5: Solve for x
    x = 426,165,616.51/18,973.12
  6. Step 6: Final answer
    x = 22,461.54

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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.