Home / 15,722.22-21,705.65-10,424.22

Finding the Fourth Proportional to 15,722.22, 21,705.65 and 10,424.22

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Solution

The fourth proportional to 15,722.22, 21,705.65 and 10,424.22 is: 14,391.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.22 : 21,705.65 = 10,424.22 : x
  2. Step 2: Convert to fraction form
    15,722.22/21,705.65 = 10,424.22/x
  3. Step 3: Cross multiply
    15,722.22x = 21,705.65 × 10,424.22
  4. Step 4: Simplify right side
    15,722.22x = 226,264,470.84
  5. Step 5: Solve for x
    x = 226,264,470.84/15,722.22
  6. Step 6: Final answer
    x = 14,391.38

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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.