Home / 28,017.40-38,670.60-17,415.04

Finding the Fourth Proportional to 28,017.40, 38,670.60 and 17,415.04

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Solution

The fourth proportional to 28,017.40, 38,670.60 and 17,415.04 is: 24,036.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.40 : 38,670.60 = 17,415.04 : x
  2. Step 2: Convert to fraction form
    28,017.40/38,670.60 = 17,415.04/x
  3. Step 3: Cross multiply
    28,017.40x = 38,670.60 × 17,415.04
  4. Step 4: Simplify right side
    28,017.40x = 673,450,045.82
  5. Step 5: Solve for x
    x = 673,450,045.82/28,017.40
  6. Step 6: Final answer
    x = 24,036.85

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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.