Home / 26,681.40-36,828-18,725.58

Finding the Fourth Proportional to 26,681.40, 36,828 and 18,725.58

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Solution

The fourth proportional to 26,681.40, 36,828 and 18,725.58 is: 25,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,681.40 : 36,828 = 18,725.58 : x
  2. Step 2: Convert to fraction form
    26,681.40/36,828 = 18,725.58/x
  3. Step 3: Cross multiply
    26,681.40x = 36,828 × 18,725.58
  4. Step 4: Simplify right side
    26,681.40x = 689,625,660.24
  5. Step 5: Solve for x
    x = 689,625,660.24/26,681.40
  6. Step 6: Final answer
    x = 25,846.68

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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.