Home / 20,403.90-28,072.98-16,541.01

Finding the Fourth Proportional to 20,403.90, 28,072.98 and 16,541.01

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Solution

The fourth proportional to 20,403.90, 28,072.98 and 16,541.01 is: 22,758.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403.90 : 28,072.98 = 16,541.01 : x
  2. Step 2: Convert to fraction form
    20,403.90/28,072.98 = 16,541.01/x
  3. Step 3: Cross multiply
    20,403.90x = 28,072.98 × 16,541.01
  4. Step 4: Simplify right side
    20,403.90x = 464,355,442.91
  5. Step 5: Solve for x
    x = 464,355,442.91/20,403.90
  6. Step 6: Final answer
    x = 22,758.17

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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.