Home / 51,220.47-76,842.09-15,686.76

Finding the Fourth Proportional to 51,220.47, 76,842.09 and 15,686.76

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Solution

The fourth proportional to 51,220.47, 76,842.09 and 15,686.76 is: 23,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,220.47 : 76,842.09 = 15,686.76 : x
  2. Step 2: Convert to fraction form
    51,220.47/76,842.09 = 15,686.76/x
  3. Step 3: Cross multiply
    51,220.47x = 76,842.09 × 15,686.76
  4. Step 4: Simplify right side
    51,220.47x = 1,205,403,423.73
  5. Step 5: Solve for x
    x = 1,205,403,423.73/51,220.47
  6. Step 6: Final answer
    x = 23,533.63

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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.