Home / 18,312.40-27,395.70-15,874.30

Finding the Fourth Proportional to 18,312.40, 27,395.70 and 15,874.30

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Solution

The fourth proportional to 18,312.40, 27,395.70 and 15,874.30 is: 23,748.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.40 : 27,395.70 = 15,874.30 : x
  2. Step 2: Convert to fraction form
    18,312.40/27,395.70 = 15,874.30/x
  3. Step 3: Cross multiply
    18,312.40x = 27,395.70 × 15,874.30
  4. Step 4: Simplify right side
    18,312.40x = 434,887,560.51
  5. Step 5: Solve for x
    x = 434,887,560.51/18,312.40
  6. Step 6: Final answer
    x = 23,748.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.