Home / 51,215.28-70,674.69-28,556.74

Finding the Fourth Proportional to 51,215.28, 70,674.69 and 28,556.74

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Solution

The fourth proportional to 51,215.28, 70,674.69 and 28,556.74 is: 39,406.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,215.28 : 70,674.69 = 28,556.74 : x
  2. Step 2: Convert to fraction form
    51,215.28/70,674.69 = 28,556.74/x
  3. Step 3: Cross multiply
    51,215.28x = 70,674.69 × 28,556.74
  4. Step 4: Simplify right side
    51,215.28x = 2,018,238,746.91
  5. Step 5: Solve for x
    x = 2,018,238,746.91/51,215.28
  6. Step 6: Final answer
    x = 39,406.97

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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.