Home / 26,295.78-36,288.09-15,685.86

Finding the Fourth Proportional to 26,295.78, 36,288.09 and 15,685.86

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Solution

The fourth proportional to 26,295.78, 36,288.09 and 15,685.86 is: 21,646.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,295.78 : 36,288.09 = 15,685.86 : x
  2. Step 2: Convert to fraction form
    26,295.78/36,288.09 = 15,685.86/x
  3. Step 3: Cross multiply
    26,295.78x = 36,288.09 × 15,685.86
  4. Step 4: Simplify right side
    26,295.78x = 569,209,899.41
  5. Step 5: Solve for x
    x = 569,209,899.41/26,295.78
  6. Step 6: Final answer
    x = 21,646.44

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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.