Home / 26,026.12-35,915.83-15,420.79

Finding the Fourth Proportional to 26,026.12, 35,915.83 and 15,420.79

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Solution

The fourth proportional to 26,026.12, 35,915.83 and 15,420.79 is: 21,280.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,026.12 : 35,915.83 = 15,420.79 : x
  2. Step 2: Convert to fraction form
    26,026.12/35,915.83 = 15,420.79/x
  3. Step 3: Cross multiply
    26,026.12x = 35,915.83 × 15,420.79
  4. Step 4: Simplify right side
    26,026.12x = 553,850,472.11
  5. Step 5: Solve for x
    x = 553,850,472.11/26,026.12
  6. Step 6: Final answer
    x = 21,280.56

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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.