Home / 51,013.90-70,395.78-28,351.42

Finding the Fourth Proportional to 51,013.90, 70,395.78 and 28,351.42

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Solution

The fourth proportional to 51,013.90, 70,395.78 and 28,351.42 is: 39,123.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,013.90 : 70,395.78 = 28,351.42 : x
  2. Step 2: Convert to fraction form
    51,013.90/70,395.78 = 28,351.42/x
  3. Step 3: Cross multiply
    51,013.90x = 70,395.78 × 28,351.42
  4. Step 4: Simplify right side
    51,013.90x = 1,995,820,255.34
  5. Step 5: Solve for x
    x = 1,995,820,255.34/51,013.90
  6. Step 6: Final answer
    x = 39,123.07

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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.