Home / 34,210.80-51,285.24-13,428.72

Finding the Fourth Proportional to 34,210.80, 51,285.24 and 13,428.72

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Solution

The fourth proportional to 34,210.80, 51,285.24 and 13,428.72 is: 20,130.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,210.80 : 51,285.24 = 13,428.72 : x
  2. Step 2: Convert to fraction form
    34,210.80/51,285.24 = 13,428.72/x
  3. Step 3: Cross multiply
    34,210.80x = 51,285.24 × 13,428.72
  4. Step 4: Simplify right side
    34,210.80x = 688,695,128.09
  5. Step 5: Solve for x
    x = 688,695,128.09/34,210.80
  6. Step 6: Final answer
    x = 20,130.93

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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.