Home / 22,917.40-34,389.36-12,387.64

Finding the Fourth Proportional to 22,917.40, 34,389.36 and 12,387.64

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Solution

The fourth proportional to 22,917.40, 34,389.36 and 12,387.64 is: 18,588.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,917.40 : 34,389.36 = 12,387.64 : x
  2. Step 2: Convert to fraction form
    22,917.40/34,389.36 = 12,387.64/x
  3. Step 3: Cross multiply
    22,917.40x = 34,389.36 × 12,387.64
  4. Step 4: Simplify right side
    22,917.40x = 426,003,011.51
  5. Step 5: Solve for x
    x = 426,003,011.51/22,917.40
  6. Step 6: Final answer
    x = 18,588.63

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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.