Home / 34,126.76-51,123.72-19,290.80

Finding the Fourth Proportional to 34,126.76, 51,123.72 and 19,290.80

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Solution

The fourth proportional to 34,126.76, 51,123.72 and 19,290.80 is: 28,898.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,126.76 : 51,123.72 = 19,290.80 : x
  2. Step 2: Convert to fraction form
    34,126.76/51,123.72 = 19,290.80/x
  3. Step 3: Cross multiply
    34,126.76x = 51,123.72 × 19,290.80
  4. Step 4: Simplify right side
    34,126.76x = 986,217,457.78
  5. Step 5: Solve for x
    x = 986,217,457.78/34,126.76
  6. Step 6: Final answer
    x = 28,898.65

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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.