Home / 26,000.64-35,890.20-15,390.36

Finding the Fourth Proportional to 26,000.64, 35,890.20 and 15,390.36

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Solution

The fourth proportional to 26,000.64, 35,890.20 and 15,390.36 is: 21,244.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,000.64 : 35,890.20 = 15,390.36 : x
  2. Step 2: Convert to fraction form
    26,000.64/35,890.20 = 15,390.36/x
  3. Step 3: Cross multiply
    26,000.64x = 35,890.20 × 15,390.36
  4. Step 4: Simplify right side
    26,000.64x = 552,363,098.47
  5. Step 5: Solve for x
    x = 552,363,098.47/26,000.64
  6. Step 6: Final answer
    x = 21,244.21

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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.