Home / 27,315.72-40,973.40-15,620.64

Finding the Fourth Proportional to 27,315.72, 40,973.40 and 15,620.64

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Solution

The fourth proportional to 27,315.72, 40,973.40 and 15,620.64 is: 23,430.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,315.72 : 40,973.40 = 15,620.64 : x
  2. Step 2: Convert to fraction form
    27,315.72/40,973.40 = 15,620.64/x
  3. Step 3: Cross multiply
    27,315.72x = 40,973.40 × 15,620.64
  4. Step 4: Simplify right side
    27,315.72x = 640,030,730.98
  5. Step 5: Solve for x
    x = 640,030,730.98/27,315.72
  6. Step 6: Final answer
    x = 23,430.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.