Home / 19,186.19-28,649.81-15,683.04

Finding the Fourth Proportional to 19,186.19, 28,649.81 and 15,683.04

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Solution

The fourth proportional to 19,186.19, 28,649.81 and 15,683.04 is: 23,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.19 : 28,649.81 = 15,683.04 : x
  2. Step 2: Convert to fraction form
    19,186.19/28,649.81 = 15,683.04/x
  3. Step 3: Cross multiply
    19,186.19x = 28,649.81 × 15,683.04
  4. Step 4: Simplify right side
    19,186.19x = 449,316,037.81
  5. Step 5: Solve for x
    x = 449,316,037.81/19,186.19
  6. Step 6: Final answer
    x = 23,418.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.