Home / 29,300.21-40,423.11-21,661.83

Finding the Fourth Proportional to 29,300.21, 40,423.11 and 21,661.83

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Solution

The fourth proportional to 29,300.21, 40,423.11 and 21,661.83 is: 29,885.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,300.21 : 40,423.11 = 21,661.83 : x
  2. Step 2: Convert to fraction form
    29,300.21/40,423.11 = 21,661.83/x
  3. Step 3: Cross multiply
    29,300.21x = 40,423.11 × 21,661.83
  4. Step 4: Simplify right side
    29,300.21x = 875,638,536.89
  5. Step 5: Solve for x
    x = 875,638,536.89/29,300.21
  6. Step 6: Final answer
    x = 29,885.07

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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.