Home / 21,226.74-31,830.93-10,690.26

Finding the Fourth Proportional to 21,226.74, 31,830.93 and 10,690.26

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Solution

The fourth proportional to 21,226.74, 31,830.93 and 10,690.26 is: 16,030.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,226.74 : 31,830.93 = 10,690.26 : x
  2. Step 2: Convert to fraction form
    21,226.74/31,830.93 = 10,690.26/x
  3. Step 3: Cross multiply
    21,226.74x = 31,830.93 × 10,690.26
  4. Step 4: Simplify right side
    21,226.74x = 340,280,917.74
  5. Step 5: Solve for x
    x = 340,280,917.74/21,226.74
  6. Step 6: Final answer
    x = 16,030.77

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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.