Home / 28,670.07-39,583.98-21,943.65

Finding the Fourth Proportional to 28,670.07, 39,583.98 and 21,943.65

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Solution

The fourth proportional to 28,670.07, 39,583.98 and 21,943.65 is: 30,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,670.07 : 39,583.98 = 21,943.65 : x
  2. Step 2: Convert to fraction form
    28,670.07/39,583.98 = 21,943.65/x
  3. Step 3: Cross multiply
    28,670.07x = 39,583.98 × 21,943.65
  4. Step 4: Simplify right side
    28,670.07x = 868,617,002.73
  5. Step 5: Solve for x
    x = 868,617,002.73/28,670.07
  6. Step 6: Final answer
    x = 30,297.00

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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.