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Finding the Fourth Proportional to 35,122.47, 48,455.47 and 21,670.40

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Solution

The fourth proportional to 35,122.47, 48,455.47 and 21,670.40 is: 29,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,122.47 : 48,455.47 = 21,670.40 : x
  2. Step 2: Convert to fraction form
    35,122.47/48,455.47 = 21,670.40/x
  3. Step 3: Cross multiply
    35,122.47x = 48,455.47 × 21,670.40
  4. Step 4: Simplify right side
    35,122.47x = 1,050,049,417.09
  5. Step 5: Solve for x
    x = 1,050,049,417.09/35,122.47
  6. Step 6: Final answer
    x = 29,896.80

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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.