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Finding the Fourth Proportional to 37,070, 51,156.60 and 20,303.60

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Solution

The fourth proportional to 37,070, 51,156.60 and 20,303.60 is: 28,018.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,070 : 51,156.60 = 20,303.60 : x
  2. Step 2: Convert to fraction form
    37,070/51,156.60 = 20,303.60/x
  3. Step 3: Cross multiply
    37,070x = 51,156.60 × 20,303.60
  4. Step 4: Simplify right side
    37,070x = 1,038,663,143.76
  5. Step 5: Solve for x
    x = 1,038,663,143.76/37,070
  6. Step 6: Final answer
    x = 28,018.97

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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.