Home / 28,182.23-38,891.91-15,435.17

Finding the Fourth Proportional to 28,182.23, 38,891.91 and 15,435.17

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Solution

The fourth proportional to 28,182.23, 38,891.91 and 15,435.17 is: 21,300.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.23 : 38,891.91 = 15,435.17 : x
  2. Step 2: Convert to fraction form
    28,182.23/38,891.91 = 15,435.17/x
  3. Step 3: Cross multiply
    28,182.23x = 38,891.91 × 15,435.17
  4. Step 4: Simplify right side
    28,182.23x = 600,303,242.47
  5. Step 5: Solve for x
    x = 600,303,242.47/28,182.23
  6. Step 6: Final answer
    x = 21,300.77

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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.