Home / 19,870.26-29,809.50-5,830.74

Finding the Fourth Proportional to 19,870.26, 29,809.50 and 5,830.74

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Solution

The fourth proportional to 19,870.26, 29,809.50 and 5,830.74 is: 8,747.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,870.26 : 29,809.50 = 5,830.74 : x
  2. Step 2: Convert to fraction form
    19,870.26/29,809.50 = 5,830.74/x
  3. Step 3: Cross multiply
    19,870.26x = 29,809.50 × 5,830.74
  4. Step 4: Simplify right side
    19,870.26x = 173,811,444.03
  5. Step 5: Solve for x
    x = 173,811,444.03/19,870.26
  6. Step 6: Final answer
    x = 8,747.32

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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.