Home / 25,783.76-35,588.04-15,842

Finding the Fourth Proportional to 25,783.76, 35,588.04 and 15,842

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Solution

The fourth proportional to 25,783.76, 35,588.04 and 15,842 is: 21,865.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,783.76 : 35,588.04 = 15,842 : x
  2. Step 2: Convert to fraction form
    25,783.76/35,588.04 = 15,842/x
  3. Step 3: Cross multiply
    25,783.76x = 35,588.04 × 15,842
  4. Step 4: Simplify right side
    25,783.76x = 563,785,729.68
  5. Step 5: Solve for x
    x = 563,785,729.68/25,783.76
  6. Step 6: Final answer
    x = 21,865.92

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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.