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Finding the Fourth Proportional to 37,521, 51,783.84 and 21,602.88

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Solution

The fourth proportional to 37,521, 51,783.84 and 21,602.88 is: 29,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,521 : 51,783.84 = 21,602.88 : x
  2. Step 2: Convert to fraction form
    37,521/51,783.84 = 21,602.88/x
  3. Step 3: Cross multiply
    37,521x = 51,783.84 × 21,602.88
  4. Step 4: Simplify right side
    37,521x = 1,118,680,081.46
  5. Step 5: Solve for x
    x = 1,118,680,081.46/37,521
  6. Step 6: Final answer
    x = 29,814.77

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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.