Home / 19,386.17-29,090.23-8,291.87

Finding the Fourth Proportional to 19,386.17, 29,090.23 and 8,291.87

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Solution

The fourth proportional to 19,386.17, 29,090.23 and 8,291.87 is: 12,442.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.17 : 29,090.23 = 8,291.87 : x
  2. Step 2: Convert to fraction form
    19,386.17/29,090.23 = 8,291.87/x
  3. Step 3: Cross multiply
    19,386.17x = 29,090.23 × 8,291.87
  4. Step 4: Simplify right side
    19,386.17x = 241,212,239.25
  5. Step 5: Solve for x
    x = 241,212,239.25/19,386.17
  6. Step 6: Final answer
    x = 12,442.49

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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.