Home / 28,521.49-42,764-13,700.92

Finding the Fourth Proportional to 28,521.49, 42,764 and 13,700.92

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Solution

The fourth proportional to 28,521.49, 42,764 and 13,700.92 is: 20,542.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,521.49 : 42,764 = 13,700.92 : x
  2. Step 2: Convert to fraction form
    28,521.49/42,764 = 13,700.92/x
  3. Step 3: Cross multiply
    28,521.49x = 42,764 × 13,700.92
  4. Step 4: Simplify right side
    28,521.49x = 585,905,929.06
  5. Step 5: Solve for x
    x = 585,905,929.06/28,521.49
  6. Step 6: Final answer
    x = 20,542.62

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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.