Home / 28,315.80-42,506.10-16,635.60

Finding the Fourth Proportional to 28,315.80, 42,506.10 and 16,635.60

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Solution

The fourth proportional to 28,315.80, 42,506.10 and 16,635.60 is: 24,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,315.80 : 42,506.10 = 16,635.60 : x
  2. Step 2: Convert to fraction form
    28,315.80/42,506.10 = 16,635.60/x
  3. Step 3: Cross multiply
    28,315.80x = 42,506.10 × 16,635.60
  4. Step 4: Simplify right side
    28,315.80x = 707,114,477.16
  5. Step 5: Solve for x
    x = 707,114,477.16/28,315.80
  6. Step 6: Final answer
    x = 24,972.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.