Home / 37,488.08-51,731.52-20,720

Finding the Fourth Proportional to 37,488.08, 51,731.52 and 20,720

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Solution

The fourth proportional to 37,488.08, 51,731.52 and 20,720 is: 28,592.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,488.08 : 51,731.52 = 20,720 : x
  2. Step 2: Convert to fraction form
    37,488.08/51,731.52 = 20,720/x
  3. Step 3: Cross multiply
    37,488.08x = 51,731.52 × 20,720
  4. Step 4: Simplify right side
    37,488.08x = 1,071,877,094.40
  5. Step 5: Solve for x
    x = 1,071,877,094.40/37,488.08
  6. Step 6: Final answer
    x = 28,592.48

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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.