Home / 51,217.96-70,681.54-28,556.28

Finding the Fourth Proportional to 51,217.96, 70,681.54 and 28,556.28

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Solution

The fourth proportional to 51,217.96, 70,681.54 and 28,556.28 is: 39,408.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,217.96 : 70,681.54 = 28,556.28 : x
  2. Step 2: Convert to fraction form
    51,217.96/70,681.54 = 28,556.28/x
  3. Step 3: Cross multiply
    51,217.96x = 70,681.54 × 28,556.28
  4. Step 4: Simplify right side
    51,217.96x = 2,018,401,847.07
  5. Step 5: Solve for x
    x = 2,018,401,847.07/51,217.96
  6. Step 6: Final answer
    x = 39,408.09

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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.