Home / 15,401.20-21,323.64-14,623.60

Finding the Fourth Proportional to 15,401.20, 21,323.64 and 14,623.60

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Solution

The fourth proportional to 15,401.20, 21,323.64 and 14,623.60 is: 20,247.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401.20 : 21,323.64 = 14,623.60 : x
  2. Step 2: Convert to fraction form
    15,401.20/21,323.64 = 14,623.60/x
  3. Step 3: Cross multiply
    15,401.20x = 21,323.64 × 14,623.60
  4. Step 4: Simplify right side
    15,401.20x = 311,828,381.90
  5. Step 5: Solve for x
    x = 311,828,381.90/15,401.20
  6. Step 6: Final answer
    x = 20,247.02

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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.