Home / 28,519.17-39,315.29-19,552.47

Finding the Fourth Proportional to 28,519.17, 39,315.29 and 19,552.47

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Solution

The fourth proportional to 28,519.17, 39,315.29 and 19,552.47 is: 26,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.17 : 39,315.29 = 19,552.47 : x
  2. Step 2: Convert to fraction form
    28,519.17/39,315.29 = 19,552.47/x
  3. Step 3: Cross multiply
    28,519.17x = 39,315.29 × 19,552.47
  4. Step 4: Simplify right side
    28,519.17x = 768,710,930.50
  5. Step 5: Solve for x
    x = 768,710,930.50/28,519.17
  6. Step 6: Final answer
    x = 26,954.18

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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.