Home / 21,828.16-30,113.28-14,752

Finding the Fourth Proportional to 21,828.16, 30,113.28 and 14,752

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Solution

The fourth proportional to 21,828.16, 30,113.28 and 14,752 is: 20,351.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828.16 : 30,113.28 = 14,752 : x
  2. Step 2: Convert to fraction form
    21,828.16/30,113.28 = 14,752/x
  3. Step 3: Cross multiply
    21,828.16x = 30,113.28 × 14,752
  4. Step 4: Simplify right side
    21,828.16x = 444,231,106.56
  5. Step 5: Solve for x
    x = 444,231,106.56/21,828.16
  6. Step 6: Final answer
    x = 20,351.29

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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.