Home / 27,143.21-37,458.70-15,206.64

Finding the Fourth Proportional to 27,143.21, 37,458.70 and 15,206.64

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Solution

The fourth proportional to 27,143.21, 37,458.70 and 15,206.64 is: 20,985.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,143.21 : 37,458.70 = 15,206.64 : x
  2. Step 2: Convert to fraction form
    27,143.21/37,458.70 = 15,206.64/x
  3. Step 3: Cross multiply
    27,143.21x = 37,458.70 × 15,206.64
  4. Step 4: Simplify right side
    27,143.21x = 569,620,927.75
  5. Step 5: Solve for x
    x = 569,620,927.75/27,143.21
  6. Step 6: Final answer
    x = 20,985.77

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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.