Home / 37,830.12-56,780.20-19,123.36

Finding the Fourth Proportional to 37,830.12, 56,780.20 and 19,123.36

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Solution

The fourth proportional to 37,830.12, 56,780.20 and 19,123.36 is: 28,702.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,830.12 : 56,780.20 = 19,123.36 : x
  2. Step 2: Convert to fraction form
    37,830.12/56,780.20 = 19,123.36/x
  3. Step 3: Cross multiply
    37,830.12x = 56,780.20 × 19,123.36
  4. Step 4: Simplify right side
    37,830.12x = 1,085,828,205.47
  5. Step 5: Solve for x
    x = 1,085,828,205.47/37,830.12
  6. Step 6: Final answer
    x = 28,702.74

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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.