Home / 28,085.04-42,106.49-16,989.46

Finding the Fourth Proportional to 28,085.04, 42,106.49 and 16,989.46

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Solution

The fourth proportional to 28,085.04, 42,106.49 and 16,989.46 is: 25,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.04 : 42,106.49 = 16,989.46 : x
  2. Step 2: Convert to fraction form
    28,085.04/42,106.49 = 16,989.46/x
  3. Step 3: Cross multiply
    28,085.04x = 42,106.49 × 16,989.46
  4. Step 4: Simplify right side
    28,085.04x = 715,366,317.06
  5. Step 5: Solve for x
    x = 715,366,317.06/28,085.04
  6. Step 6: Final answer
    x = 25,471.44

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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.