Home / 29,291.13-40,421.69-15,862.34

Finding the Fourth Proportional to 29,291.13, 40,421.69 and 15,862.34

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Solution

The fourth proportional to 29,291.13, 40,421.69 and 15,862.34 is: 21,890.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,291.13 : 40,421.69 = 15,862.34 : x
  2. Step 2: Convert to fraction form
    29,291.13/40,421.69 = 15,862.34/x
  3. Step 3: Cross multiply
    29,291.13x = 40,421.69 × 15,862.34
  4. Step 4: Simplify right side
    29,291.13x = 641,182,760.61
  5. Step 5: Solve for x
    x = 641,182,760.61/29,291.13
  6. Step 6: Final answer
    x = 21,890.00

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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.