Home / 28,824.40-43,206.88-20,907.08

Finding the Fourth Proportional to 28,824.40, 43,206.88 and 20,907.08

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Solution

The fourth proportional to 28,824.40, 43,206.88 and 20,907.08 is: 31,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,824.40 : 43,206.88 = 20,907.08 : x
  2. Step 2: Convert to fraction form
    28,824.40/43,206.88 = 20,907.08/x
  3. Step 3: Cross multiply
    28,824.40x = 43,206.88 × 20,907.08
  4. Step 4: Simplify right side
    28,824.40x = 903,329,696.71
  5. Step 5: Solve for x
    x = 903,329,696.71/28,824.40
  6. Step 6: Final answer
    x = 31,339.06

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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.