Home / 18,389.84-25,388.32-14,074.80

Finding the Fourth Proportional to 18,389.84, 25,388.32 and 14,074.80

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Solution

The fourth proportional to 18,389.84, 25,388.32 and 14,074.80 is: 19,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.84 : 25,388.32 = 14,074.80 : x
  2. Step 2: Convert to fraction form
    18,389.84/25,388.32 = 14,074.80/x
  3. Step 3: Cross multiply
    18,389.84x = 25,388.32 × 14,074.80
  4. Step 4: Simplify right side
    18,389.84x = 357,335,526.34
  5. Step 5: Solve for x
    x = 357,335,526.34/18,389.84
  6. Step 6: Final answer
    x = 19,431.14

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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.