Home / 28,459.35-42,681.87-8,464.23

Finding the Fourth Proportional to 28,459.35, 42,681.87 and 8,464.23

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Solution

The fourth proportional to 28,459.35, 42,681.87 and 8,464.23 is: 12,694.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459.35 : 42,681.87 = 8,464.23 : x
  2. Step 2: Convert to fraction form
    28,459.35/42,681.87 = 8,464.23/x
  3. Step 3: Cross multiply
    28,459.35x = 42,681.87 × 8,464.23
  4. Step 4: Simplify right side
    28,459.35x = 361,269,164.51
  5. Step 5: Solve for x
    x = 361,269,164.51/28,459.35
  6. Step 6: Final answer
    x = 12,694.22

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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.