Home / 30,862.18-42,589.87-16,715.03

Finding the Fourth Proportional to 30,862.18, 42,589.87 and 16,715.03

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Solution

The fourth proportional to 30,862.18, 42,589.87 and 16,715.03 is: 23,066.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,862.18 : 42,589.87 = 16,715.03 : x
  2. Step 2: Convert to fraction form
    30,862.18/42,589.87 = 16,715.03/x
  3. Step 3: Cross multiply
    30,862.18x = 42,589.87 × 16,715.03
  4. Step 4: Simplify right side
    30,862.18x = 711,890,954.75
  5. Step 5: Solve for x
    x = 711,890,954.75/30,862.18
  6. Step 6: Final answer
    x = 23,066.77

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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.