Home / 15,428.46-23,145.12-5,570.16

Finding the Fourth Proportional to 15,428.46, 23,145.12 and 5,570.16

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Solution

The fourth proportional to 15,428.46, 23,145.12 and 5,570.16 is: 8,356.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.46 : 23,145.12 = 5,570.16 : x
  2. Step 2: Convert to fraction form
    15,428.46/23,145.12 = 5,570.16/x
  3. Step 3: Cross multiply
    15,428.46x = 23,145.12 × 5,570.16
  4. Step 4: Simplify right side
    15,428.46x = 128,922,021.62
  5. Step 5: Solve for x
    x = 128,922,021.62/15,428.46
  6. Step 6: Final answer
    x = 8,356.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.