Home / 34,312.80-51,475.68-12,123.60

Finding the Fourth Proportional to 34,312.80, 51,475.68 and 12,123.60

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Solution

The fourth proportional to 34,312.80, 51,475.68 and 12,123.60 is: 18,187.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,312.80 : 51,475.68 = 12,123.60 : x
  2. Step 2: Convert to fraction form
    34,312.80/51,475.68 = 12,123.60/x
  3. Step 3: Cross multiply
    34,312.80x = 51,475.68 × 12,123.60
  4. Step 4: Simplify right side
    34,312.80x = 624,070,554.05
  5. Step 5: Solve for x
    x = 624,070,554.05/34,312.80
  6. Step 6: Final answer
    x = 18,187.69

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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.