Home / 29,291.22-40,421.99-15,862.43

Finding the Fourth Proportional to 29,291.22, 40,421.99 and 15,862.43

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Solution

The fourth proportional to 29,291.22, 40,421.99 and 15,862.43 is: 21,890.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,291.22 : 40,421.99 = 15,862.43 : x
  2. Step 2: Convert to fraction form
    29,291.22/40,421.99 = 15,862.43/x
  3. Step 3: Cross multiply
    29,291.22x = 40,421.99 × 15,862.43
  4. Step 4: Simplify right side
    29,291.22x = 641,191,038.32
  5. Step 5: Solve for x
    x = 641,191,038.32/29,291.22
  6. Step 6: Final answer
    x = 21,890.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.