Home / 30,975.83-42,746.85-16,828.67

Finding the Fourth Proportional to 30,975.83, 42,746.85 and 16,828.67

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Solution

The fourth proportional to 30,975.83, 42,746.85 and 16,828.67 is: 23,223.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,975.83 : 42,746.85 = 16,828.67 : x
  2. Step 2: Convert to fraction form
    30,975.83/42,746.85 = 16,828.67/x
  3. Step 3: Cross multiply
    30,975.83x = 42,746.85 × 16,828.67
  4. Step 4: Simplify right side
    30,975.83x = 719,372,632.19
  5. Step 5: Solve for x
    x = 719,372,632.19/30,975.83
  6. Step 6: Final answer
    x = 23,223.68

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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.