Home / 22,555.31-31,124.40-12,483.77

Finding the Fourth Proportional to 22,555.31, 31,124.40 and 12,483.77

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Solution

The fourth proportional to 22,555.31, 31,124.40 and 12,483.77 is: 17,226.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,555.31 : 31,124.40 = 12,483.77 : x
  2. Step 2: Convert to fraction form
    22,555.31/31,124.40 = 12,483.77/x
  3. Step 3: Cross multiply
    22,555.31x = 31,124.40 × 12,483.77
  4. Step 4: Simplify right side
    22,555.31x = 388,549,850.99
  5. Step 5: Solve for x
    x = 388,549,850.99/22,555.31
  6. Step 6: Final answer
    x = 17,226.54

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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.