Home / 30,297.53-45,424.41-12,757.79

Finding the Fourth Proportional to 30,297.53, 45,424.41 and 12,757.79

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Solution

The fourth proportional to 30,297.53, 45,424.41 and 12,757.79 is: 19,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,297.53 : 45,424.41 = 12,757.79 : x
  2. Step 2: Convert to fraction form
    30,297.53/45,424.41 = 12,757.79/x
  3. Step 3: Cross multiply
    30,297.53x = 45,424.41 × 12,757.79
  4. Step 4: Simplify right side
    30,297.53x = 579,514,856.53
  5. Step 5: Solve for x
    x = 579,514,856.53/30,297.53
  6. Step 6: Final answer
    x = 19,127.47

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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.