Home / 19,691.55-29,506.37-12,284.91

Finding the Fourth Proportional to 19,691.55, 29,506.37 and 12,284.91

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Solution

The fourth proportional to 19,691.55, 29,506.37 and 12,284.91 is: 18,408.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.55 : 29,506.37 = 12,284.91 : x
  2. Step 2: Convert to fraction form
    19,691.55/29,506.37 = 12,284.91/x
  3. Step 3: Cross multiply
    19,691.55x = 29,506.37 × 12,284.91
  4. Step 4: Simplify right side
    19,691.55x = 362,483,038.45
  5. Step 5: Solve for x
    x = 362,483,038.45/19,691.55
  6. Step 6: Final answer
    x = 18,408.05

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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.