Home / 30,962.76-42,727.32-16,815.24

Finding the Fourth Proportional to 30,962.76, 42,727.32 and 16,815.24

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Solution

The fourth proportional to 30,962.76, 42,727.32 and 16,815.24 is: 23,204.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,962.76 : 42,727.32 = 16,815.24 : x
  2. Step 2: Convert to fraction form
    30,962.76/42,727.32 = 16,815.24/x
  3. Step 3: Cross multiply
    30,962.76x = 42,727.32 × 16,815.24
  4. Step 4: Simplify right side
    30,962.76x = 718,470,140.36
  5. Step 5: Solve for x
    x = 718,470,140.36/30,962.76
  6. Step 6: Final answer
    x = 23,204.33

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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.