Home / 27,700.16-38,234.40-19,319.36

Finding the Fourth Proportional to 27,700.16, 38,234.40 and 19,319.36

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Solution

The fourth proportional to 27,700.16, 38,234.40 and 19,319.36 is: 26,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,700.16 : 38,234.40 = 19,319.36 : x
  2. Step 2: Convert to fraction form
    27,700.16/38,234.40 = 19,319.36/x
  3. Step 3: Cross multiply
    27,700.16x = 38,234.40 × 19,319.36
  4. Step 4: Simplify right side
    27,700.16x = 738,664,137.98
  5. Step 5: Solve for x
    x = 738,664,137.98/27,700.16
  6. Step 6: Final answer
    x = 26,666.42

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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.