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Finding the Fourth Proportional to 37,497.60, 51,756.80 and 21,587.20

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Solution

The fourth proportional to 37,497.60, 51,756.80 and 21,587.20 is: 29,796.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,497.60 : 51,756.80 = 21,587.20 : x
  2. Step 2: Convert to fraction form
    37,497.60/51,756.80 = 21,587.20/x
  3. Step 3: Cross multiply
    37,497.60x = 51,756.80 × 21,587.20
  4. Step 4: Simplify right side
    37,497.60x = 1,117,284,392.96
  5. Step 5: Solve for x
    x = 1,117,284,392.96/37,497.60
  6. Step 6: Final answer
    x = 29,796.16

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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.