Home / 37,418.58-51,638.70-20,423.90

Finding the Fourth Proportional to 37,418.58, 51,638.70 and 20,423.90

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Solution

The fourth proportional to 37,418.58, 51,638.70 and 20,423.90 is: 28,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,418.58 : 51,638.70 = 20,423.90 : x
  2. Step 2: Convert to fraction form
    37,418.58/51,638.70 = 20,423.90/x
  3. Step 3: Cross multiply
    37,418.58x = 51,638.70 × 20,423.90
  4. Step 4: Simplify right side
    37,418.58x = 1,054,663,386.74
  5. Step 5: Solve for x
    x = 1,054,663,386.74/37,418.58
  6. Step 6: Final answer
    x = 28,185.55

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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.