Home / 22,775.49-31,428-12,703.14

Finding the Fourth Proportional to 22,775.49, 31,428 and 12,703.14

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Solution

The fourth proportional to 22,775.49, 31,428 and 12,703.14 is: 17,529.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,775.49 : 31,428 = 12,703.14 : x
  2. Step 2: Convert to fraction form
    22,775.49/31,428 = 12,703.14/x
  3. Step 3: Cross multiply
    22,775.49x = 31,428 × 12,703.14
  4. Step 4: Simplify right side
    22,775.49x = 399,234,283.92
  5. Step 5: Solve for x
    x = 399,234,283.92/22,775.49
  6. Step 6: Final answer
    x = 17,529.12

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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.