Home / 30,856.41-42,582.15-16,709.55

Finding the Fourth Proportional to 30,856.41, 42,582.15 and 16,709.55

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Solution

The fourth proportional to 30,856.41, 42,582.15 and 16,709.55 is: 23,059.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,856.41 : 42,582.15 = 16,709.55 : x
  2. Step 2: Convert to fraction form
    30,856.41/42,582.15 = 16,709.55/x
  3. Step 3: Cross multiply
    30,856.41x = 42,582.15 × 16,709.55
  4. Step 4: Simplify right side
    30,856.41x = 711,528,564.53
  5. Step 5: Solve for x
    x = 711,528,564.53/30,856.41
  6. Step 6: Final answer
    x = 23,059.34

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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.