Home / 35,400.72-48,857.16-21,253.20

Finding the Fourth Proportional to 35,400.72, 48,857.16 and 21,253.20

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Solution

The fourth proportional to 35,400.72, 48,857.16 and 21,253.20 is: 29,331.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,400.72 : 48,857.16 = 21,253.20 : x
  2. Step 2: Convert to fraction form
    35,400.72/48,857.16 = 21,253.20/x
  3. Step 3: Cross multiply
    35,400.72x = 48,857.16 × 21,253.20
  4. Step 4: Simplify right side
    35,400.72x = 1,038,370,992.91
  5. Step 5: Solve for x
    x = 1,038,370,992.91/35,400.72
  6. Step 6: Final answer
    x = 29,331.92

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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.