Home / 30,856.76-42,582.35-16,709.57

Finding the Fourth Proportional to 30,856.76, 42,582.35 and 16,709.57

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Solution

The fourth proportional to 30,856.76, 42,582.35 and 16,709.57 is: 23,059.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,856.76 : 42,582.35 = 16,709.57 : x
  2. Step 2: Convert to fraction form
    30,856.76/42,582.35 = 16,709.57/x
  3. Step 3: Cross multiply
    30,856.76x = 42,582.35 × 16,709.57
  4. Step 4: Simplify right side
    30,856.76x = 711,532,758.09
  5. Step 5: Solve for x
    x = 711,532,758.09/30,856.76
  6. Step 6: Final answer
    x = 23,059.22

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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.