Home / 37,155.37-51,271.90-20,389.45

Finding the Fourth Proportional to 37,155.37, 51,271.90 and 20,389.45

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Solution

The fourth proportional to 37,155.37, 51,271.90 and 20,389.45 is: 28,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,155.37 : 51,271.90 = 20,389.45 : x
  2. Step 2: Convert to fraction form
    37,155.37/51,271.90 = 20,389.45/x
  3. Step 3: Cross multiply
    37,155.37x = 51,271.90 × 20,389.45
  4. Step 4: Simplify right side
    37,155.37x = 1,045,405,841.46
  5. Step 5: Solve for x
    x = 1,045,405,841.46/37,155.37
  6. Step 6: Final answer
    x = 28,136.06

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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.