Home / 27,710.64-38,254.68-21,647.52

Finding the Fourth Proportional to 27,710.64, 38,254.68 and 21,647.52

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Solution

The fourth proportional to 27,710.64, 38,254.68 and 21,647.52 is: 29,884.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,710.64 : 38,254.68 = 21,647.52 : x
  2. Step 2: Convert to fraction form
    27,710.64/38,254.68 = 21,647.52/x
  3. Step 3: Cross multiply
    27,710.64x = 38,254.68 × 21,647.52
  4. Step 4: Simplify right side
    27,710.64x = 828,118,950.39
  5. Step 5: Solve for x
    x = 828,118,950.39/27,710.64
  6. Step 6: Final answer
    x = 29,884.51

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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.