Home / 28,717.87-39,631.13-17,387.23

Finding the Fourth Proportional to 28,717.87, 39,631.13 and 17,387.23

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Solution

The fourth proportional to 28,717.87, 39,631.13 and 17,387.23 is: 23,994.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.87 : 39,631.13 = 17,387.23 : x
  2. Step 2: Convert to fraction form
    28,717.87/39,631.13 = 17,387.23/x
  3. Step 3: Cross multiply
    28,717.87x = 39,631.13 × 17,387.23
  4. Step 4: Simplify right side
    28,717.87x = 689,075,572.47
  5. Step 5: Solve for x
    x = 689,075,572.47/28,717.87
  6. Step 6: Final answer
    x = 23,994.66

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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.