Home / 30,423.48-41,985.10-16,994.68

Finding the Fourth Proportional to 30,423.48, 41,985.10 and 16,994.68

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Solution

The fourth proportional to 30,423.48, 41,985.10 and 16,994.68 is: 23,453.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,423.48 : 41,985.10 = 16,994.68 : x
  2. Step 2: Convert to fraction form
    30,423.48/41,985.10 = 16,994.68/x
  3. Step 3: Cross multiply
    30,423.48x = 41,985.10 × 16,994.68
  4. Step 4: Simplify right side
    30,423.48x = 713,523,339.27
  5. Step 5: Solve for x
    x = 713,523,339.27/30,423.48
  6. Step 6: Final answer
    x = 23,453.05

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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.