Home / 34,576.76-47,715.54-20,429.30

Finding the Fourth Proportional to 34,576.76, 47,715.54 and 20,429.30

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Solution

The fourth proportional to 34,576.76, 47,715.54 and 20,429.30 is: 28,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,576.76 : 47,715.54 = 20,429.30 : x
  2. Step 2: Convert to fraction form
    34,576.76/47,715.54 = 20,429.30/x
  3. Step 3: Cross multiply
    34,576.76x = 47,715.54 × 20,429.30
  4. Step 4: Simplify right side
    34,576.76x = 974,795,081.32
  5. Step 5: Solve for x
    x = 974,795,081.32/34,576.76
  6. Step 6: Final answer
    x = 28,192.20

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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.