Home / 22,775.99-31,428.69-12,703.64

Finding the Fourth Proportional to 22,775.99, 31,428.69 and 12,703.64

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Solution

The fourth proportional to 22,775.99, 31,428.69 and 12,703.64 is: 17,529.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,775.99 : 31,428.69 = 12,703.64 : x
  2. Step 2: Convert to fraction form
    22,775.99/31,428.69 = 12,703.64/x
  3. Step 3: Cross multiply
    22,775.99x = 31,428.69 × 12,703.64
  4. Step 4: Simplify right side
    22,775.99x = 399,258,763.43
  5. Step 5: Solve for x
    x = 399,258,763.43/22,775.99
  6. Step 6: Final answer
    x = 17,529.81

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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.