Home / 19,987.48-30,006.06-12,944.44

Finding the Fourth Proportional to 19,987.48, 30,006.06 and 12,944.44

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Solution

The fourth proportional to 19,987.48, 30,006.06 and 12,944.44 is: 19,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.48 : 30,006.06 = 12,944.44 : x
  2. Step 2: Convert to fraction form
    19,987.48/30,006.06 = 12,944.44/x
  3. Step 3: Cross multiply
    19,987.48x = 30,006.06 × 12,944.44
  4. Step 4: Simplify right side
    19,987.48x = 388,411,643.31
  5. Step 5: Solve for x
    x = 388,411,643.31/19,987.48
  6. Step 6: Final answer
    x = 19,432.75

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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.