Home / 22,900.74-31,603.31-12,828.99

Finding the Fourth Proportional to 22,900.74, 31,603.31 and 12,828.99

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Solution

The fourth proportional to 22,900.74, 31,603.31 and 12,828.99 is: 17,704.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,900.74 : 31,603.31 = 12,828.99 : x
  2. Step 2: Convert to fraction form
    22,900.74/31,603.31 = 12,828.99/x
  3. Step 3: Cross multiply
    22,900.74x = 31,603.31 × 12,828.99
  4. Step 4: Simplify right side
    22,900.74x = 405,438,547.96
  5. Step 5: Solve for x
    x = 405,438,547.96/22,900.74
  6. Step 6: Final answer
    x = 17,704.17

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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.