Home / 28,296.36-42,438.84-8,570.28

Finding the Fourth Proportional to 28,296.36, 42,438.84 and 8,570.28

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Solution

The fourth proportional to 28,296.36, 42,438.84 and 8,570.28 is: 12,853.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296.36 : 42,438.84 = 8,570.28 : x
  2. Step 2: Convert to fraction form
    28,296.36/42,438.84 = 8,570.28/x
  3. Step 3: Cross multiply
    28,296.36x = 42,438.84 × 8,570.28
  4. Step 4: Simplify right side
    28,296.36x = 363,712,741.68
  5. Step 5: Solve for x
    x = 363,712,741.68/28,296.36
  6. Step 6: Final answer
    x = 12,853.69

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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.