Home / 43,345.91-65,031.62-13,763.09

Finding the Fourth Proportional to 43,345.91, 65,031.62 and 13,763.09

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Solution

The fourth proportional to 43,345.91, 65,031.62 and 13,763.09 is: 20,648.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,345.91 : 65,031.62 = 13,763.09 : x
  2. Step 2: Convert to fraction form
    43,345.91/65,031.62 = 13,763.09/x
  3. Step 3: Cross multiply
    43,345.91x = 65,031.62 × 13,763.09
  4. Step 4: Simplify right side
    43,345.91x = 895,036,038.91
  5. Step 5: Solve for x
    x = 895,036,038.91/43,345.91
  6. Step 6: Final answer
    x = 20,648.68

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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.