Home / 27,420.17-37,840.70-16,820.51

Finding the Fourth Proportional to 27,420.17, 37,840.70 and 16,820.51

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Solution

The fourth proportional to 27,420.17, 37,840.70 and 16,820.51 is: 23,212.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.17 : 37,840.70 = 16,820.51 : x
  2. Step 2: Convert to fraction form
    27,420.17/37,840.70 = 16,820.51/x
  3. Step 3: Cross multiply
    27,420.17x = 37,840.70 × 16,820.51
  4. Step 4: Simplify right side
    27,420.17x = 636,499,725.60
  5. Step 5: Solve for x
    x = 636,499,725.60/27,420.17
  6. Step 6: Final answer
    x = 23,212.83

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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.