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Finding the Fourth Proportional to 34,335.60, 51,454.80 and 21,148.80

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Solution

The fourth proportional to 34,335.60, 51,454.80 and 21,148.80 is: 31,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,335.60 : 51,454.80 = 21,148.80 : x
  2. Step 2: Convert to fraction form
    34,335.60/51,454.80 = 21,148.80/x
  3. Step 3: Cross multiply
    34,335.60x = 51,454.80 × 21,148.80
  4. Step 4: Simplify right side
    34,335.60x = 1,088,207,274.24
  5. Step 5: Solve for x
    x = 1,088,207,274.24/34,335.60
  6. Step 6: Final answer
    x = 31,693.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.