Home / 30,857.02-42,582.58-16,709.90

Finding the Fourth Proportional to 30,857.02, 42,582.58 and 16,709.90

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Solution

The fourth proportional to 30,857.02, 42,582.58 and 16,709.90 is: 23,059.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,857.02 : 42,582.58 = 16,709.90 : x
  2. Step 2: Convert to fraction form
    30,857.02/42,582.58 = 16,709.90/x
  3. Step 3: Cross multiply
    30,857.02x = 42,582.58 × 16,709.90
  4. Step 4: Simplify right side
    30,857.02x = 711,550,398.85
  5. Step 5: Solve for x
    x = 711,550,398.85/30,857.02
  6. Step 6: Final answer
    x = 23,059.60

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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.