Home / 28,970.58-39,981.57-16,397.22

Finding the Fourth Proportional to 28,970.58, 39,981.57 and 16,397.22

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Solution

The fourth proportional to 28,970.58, 39,981.57 and 16,397.22 is: 22,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,970.58 : 39,981.57 = 16,397.22 : x
  2. Step 2: Convert to fraction form
    28,970.58/39,981.57 = 16,397.22/x
  3. Step 3: Cross multiply
    28,970.58x = 39,981.57 × 16,397.22
  4. Step 4: Simplify right side
    28,970.58x = 655,586,599.24
  5. Step 5: Solve for x
    x = 655,586,599.24/28,970.58
  6. Step 6: Final answer
    x = 22,629.39

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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.