Home / 21,523.16-29,700.60-12,573.20

Finding the Fourth Proportional to 21,523.16, 29,700.60 and 12,573.20

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Solution

The fourth proportional to 21,523.16, 29,700.60 and 12,573.20 is: 17,350.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,523.16 : 29,700.60 = 12,573.20 : x
  2. Step 2: Convert to fraction form
    21,523.16/29,700.60 = 12,573.20/x
  3. Step 3: Cross multiply
    21,523.16x = 29,700.60 × 12,573.20
  4. Step 4: Simplify right side
    21,523.16x = 373,431,583.92
  5. Step 5: Solve for x
    x = 373,431,583.92/21,523.16
  6. Step 6: Final answer
    x = 17,350.22

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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.