Home / 14,547.70-21,821.75-4,159.45

Finding the Fourth Proportional to 14,547.70, 21,821.75 and 4,159.45

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Solution

The fourth proportional to 14,547.70, 21,821.75 and 4,159.45 is: 6,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,547.70 : 21,821.75 = 4,159.45 : x
  2. Step 2: Convert to fraction form
    14,547.70/21,821.75 = 4,159.45/x
  3. Step 3: Cross multiply
    14,547.70x = 21,821.75 × 4,159.45
  4. Step 4: Simplify right side
    14,547.70x = 90,766,474.80
  5. Step 5: Solve for x
    x = 90,766,474.80/14,547.70
  6. Step 6: Final answer
    x = 6,239.23

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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.