Home / 30,423-41,983.74-17,175

Finding the Fourth Proportional to 30,423, 41,983.74 and 17,175

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Solution

The fourth proportional to 30,423, 41,983.74 and 17,175 is: 23,701.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,423 : 41,983.74 = 17,175 : x
  2. Step 2: Convert to fraction form
    30,423/41,983.74 = 17,175/x
  3. Step 3: Cross multiply
    30,423x = 41,983.74 × 17,175
  4. Step 4: Simplify right side
    30,423x = 721,070,734.50
  5. Step 5: Solve for x
    x = 721,070,734.50/30,423
  6. Step 6: Final answer
    x = 23,701.50

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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.