Home / 30,898.34-42,639.99-16,751.22

Finding the Fourth Proportional to 30,898.34, 42,639.99 and 16,751.22

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Solution

The fourth proportional to 30,898.34, 42,639.99 and 16,751.22 is: 23,116.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,898.34 : 42,639.99 = 16,751.22 : x
  2. Step 2: Convert to fraction form
    30,898.34/42,639.99 = 16,751.22/x
  3. Step 3: Cross multiply
    30,898.34x = 42,639.99 × 16,751.22
  4. Step 4: Simplify right side
    30,898.34x = 714,271,746.69
  5. Step 5: Solve for x
    x = 714,271,746.69/30,898.34
  6. Step 6: Final answer
    x = 23,116.83

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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.