Home / 29,031.48-40,048.67-18,965.81

Finding the Fourth Proportional to 29,031.48, 40,048.67 and 18,965.81

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Solution

The fourth proportional to 29,031.48, 40,048.67 and 18,965.81 is: 26,163.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,031.48 : 40,048.67 = 18,965.81 : x
  2. Step 2: Convert to fraction form
    29,031.48/40,048.67 = 18,965.81/x
  3. Step 3: Cross multiply
    29,031.48x = 40,048.67 × 18,965.81
  4. Step 4: Simplify right side
    29,031.48x = 759,555,506.83
  5. Step 5: Solve for x
    x = 759,555,506.83/29,031.48
  6. Step 6: Final answer
    x = 26,163.17

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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.