Home / 28,283.04-42,423.67-7,223.01

Finding the Fourth Proportional to 28,283.04, 42,423.67 and 7,223.01

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Solution

The fourth proportional to 28,283.04, 42,423.67 and 7,223.01 is: 10,834.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,283.04 : 42,423.67 = 7,223.01 : x
  2. Step 2: Convert to fraction form
    28,283.04/42,423.67 = 7,223.01/x
  3. Step 3: Cross multiply
    28,283.04x = 42,423.67 × 7,223.01
  4. Step 4: Simplify right side
    28,283.04x = 306,426,592.65
  5. Step 5: Solve for x
    x = 306,426,592.65/28,283.04
  6. Step 6: Final answer
    x = 10,834.29

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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.