Home / 30,122.48-45,199.12-14,345.36

Finding the Fourth Proportional to 30,122.48, 45,199.12 and 14,345.36

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Solution

The fourth proportional to 30,122.48, 45,199.12 and 14,345.36 is: 21,525.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.48 : 45,199.12 = 14,345.36 : x
  2. Step 2: Convert to fraction form
    30,122.48/45,199.12 = 14,345.36/x
  3. Step 3: Cross multiply
    30,122.48x = 45,199.12 × 14,345.36
  4. Step 4: Simplify right side
    30,122.48x = 648,397,648.08
  5. Step 5: Solve for x
    x = 648,397,648.08/30,122.48
  6. Step 6: Final answer
    x = 21,525.37

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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.