Home / 30,847.03-42,568.98-16,699.90

Finding the Fourth Proportional to 30,847.03, 42,568.98 and 16,699.90

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Solution

The fourth proportional to 30,847.03, 42,568.98 and 16,699.90 is: 23,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,847.03 : 42,568.98 = 16,699.90 : x
  2. Step 2: Convert to fraction form
    30,847.03/42,568.98 = 16,699.90/x
  3. Step 3: Cross multiply
    30,847.03x = 42,568.98 × 16,699.90
  4. Step 4: Simplify right side
    30,847.03x = 710,897,709.10
  5. Step 5: Solve for x
    x = 710,897,709.10/30,847.03
  6. Step 6: Final answer
    x = 23,045.90

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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.