Home / 28,252.64-42,378.95-10,722.47

Finding the Fourth Proportional to 28,252.64, 42,378.95 and 10,722.47

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Solution

The fourth proportional to 28,252.64, 42,378.95 and 10,722.47 is: 16,083.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252.64 : 42,378.95 = 10,722.47 : x
  2. Step 2: Convert to fraction form
    28,252.64/42,378.95 = 10,722.47/x
  3. Step 3: Cross multiply
    28,252.64x = 42,378.95 × 10,722.47
  4. Step 4: Simplify right side
    28,252.64x = 454,406,754.50
  5. Step 5: Solve for x
    x = 454,406,754.50/28,252.64
  6. Step 6: Final answer
    x = 16,083.69

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1.5x scale

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.