Home / 18,623.48-25,700.32-10,971.20

Finding the Fourth Proportional to 18,623.48, 25,700.32 and 10,971.20

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Solution

The fourth proportional to 18,623.48, 25,700.32 and 10,971.20 is: 15,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,623.48 : 25,700.32 = 10,971.20 : x
  2. Step 2: Convert to fraction form
    18,623.48/25,700.32 = 10,971.20/x
  3. Step 3: Cross multiply
    18,623.48x = 25,700.32 × 10,971.20
  4. Step 4: Simplify right side
    18,623.48x = 281,963,222.47
  5. Step 5: Solve for x
    x = 281,963,222.47/18,623.48
  6. Step 6: Final answer
    x = 15,140.20

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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.