Home / 37,642.20-51,946.80-20,648.10

Finding the Fourth Proportional to 37,642.20, 51,946.80 and 20,648.10

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Solution

The fourth proportional to 37,642.20, 51,946.80 and 20,648.10 is: 28,494.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,642.20 : 51,946.80 = 20,648.10 : x
  2. Step 2: Convert to fraction form
    37,642.20/51,946.80 = 20,648.10/x
  3. Step 3: Cross multiply
    37,642.20x = 51,946.80 × 20,648.10
  4. Step 4: Simplify right side
    37,642.20x = 1,072,602,721.08
  5. Step 5: Solve for x
    x = 1,072,602,721.08/37,642.20
  6. Step 6: Final answer
    x = 28,494.69

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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.