Home / 34,428.30-47,521.23-20,285.70

Finding the Fourth Proportional to 34,428.30, 47,521.23 and 20,285.70

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Solution

The fourth proportional to 34,428.30, 47,521.23 and 20,285.70 is: 28,000.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,428.30 : 47,521.23 = 20,285.70 : x
  2. Step 2: Convert to fraction form
    34,428.30/47,521.23 = 20,285.70/x
  3. Step 3: Cross multiply
    34,428.30x = 47,521.23 × 20,285.70
  4. Step 4: Simplify right side
    34,428.30x = 964,001,415.41
  5. Step 5: Solve for x
    x = 964,001,415.41/34,428.30
  6. Step 6: Final answer
    x = 28,000.26

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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.