Home / 15,570.21-23,438.42-13,962.75

Finding the Fourth Proportional to 15,570.21, 23,438.42 and 13,962.75

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Solution

The fourth proportional to 15,570.21, 23,438.42 and 13,962.75 is: 21,018.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570.21 : 23,438.42 = 13,962.75 : x
  2. Step 2: Convert to fraction form
    15,570.21/23,438.42 = 13,962.75/x
  3. Step 3: Cross multiply
    15,570.21x = 23,438.42 × 13,962.75
  4. Step 4: Simplify right side
    15,570.21x = 327,264,729.04
  5. Step 5: Solve for x
    x = 327,264,729.04/15,570.21
  6. Step 6: Final answer
    x = 21,018.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.