Home / 26,461.26-36,510.78-15,276.78

Finding the Fourth Proportional to 26,461.26, 36,510.78 and 15,276.78

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Solution

The fourth proportional to 26,461.26, 36,510.78 and 15,276.78 is: 21,078.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,461.26 : 36,510.78 = 15,276.78 : x
  2. Step 2: Convert to fraction form
    26,461.26/36,510.78 = 15,276.78/x
  3. Step 3: Cross multiply
    26,461.26x = 36,510.78 × 15,276.78
  4. Step 4: Simplify right side
    26,461.26x = 557,767,153.69
  5. Step 5: Solve for x
    x = 557,767,153.69/26,461.26
  6. Step 6: Final answer
    x = 21,078.63

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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.