Home / 29,472.18-40,668.50-16,722.78

Finding the Fourth Proportional to 29,472.18, 40,668.50 and 16,722.78

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Solution

The fourth proportional to 29,472.18, 40,668.50 and 16,722.78 is: 23,075.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,472.18 : 40,668.50 = 16,722.78 : x
  2. Step 2: Convert to fraction form
    29,472.18/40,668.50 = 16,722.78/x
  3. Step 3: Cross multiply
    29,472.18x = 40,668.50 × 16,722.78
  4. Step 4: Simplify right side
    29,472.18x = 680,090,378.43
  5. Step 5: Solve for x
    x = 680,090,378.43/29,472.18
  6. Step 6: Final answer
    x = 23,075.67

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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.