Home / 23,640.78-32,637.61-15,693.87

Finding the Fourth Proportional to 23,640.78, 32,637.61 and 15,693.87

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Solution

The fourth proportional to 23,640.78, 32,637.61 and 15,693.87 is: 21,666.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,640.78 : 32,637.61 = 15,693.87 : x
  2. Step 2: Convert to fraction form
    23,640.78/32,637.61 = 15,693.87/x
  3. Step 3: Cross multiply
    23,640.78x = 32,637.61 × 15,693.87
  4. Step 4: Simplify right side
    23,640.78x = 512,210,408.45
  5. Step 5: Solve for x
    x = 512,210,408.45/23,640.78
  6. Step 6: Final answer
    x = 21,666.39

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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.