Home / 27,700.63-38,226.39-15,763.72

Finding the Fourth Proportional to 27,700.63, 38,226.39 and 15,763.72

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Solution

The fourth proportional to 27,700.63, 38,226.39 and 15,763.72 is: 21,753.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,700.63 : 38,226.39 = 15,763.72 : x
  2. Step 2: Convert to fraction form
    27,700.63/38,226.39 = 15,763.72/x
  3. Step 3: Cross multiply
    27,700.63x = 38,226.39 × 15,763.72
  4. Step 4: Simplify right side
    27,700.63x = 602,590,108.57
  5. Step 5: Solve for x
    x = 602,590,108.57/27,700.63
  6. Step 6: Final answer
    x = 21,753.66

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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.