Home / 28,175.13-42,284.01-19,269.18

Finding the Fourth Proportional to 28,175.13, 42,284.01 and 19,269.18

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Solution

The fourth proportional to 28,175.13, 42,284.01 and 19,269.18 is: 28,918.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.13 : 42,284.01 = 19,269.18 : x
  2. Step 2: Convert to fraction form
    28,175.13/42,284.01 = 19,269.18/x
  3. Step 3: Cross multiply
    28,175.13x = 42,284.01 × 19,269.18
  4. Step 4: Simplify right side
    28,175.13x = 814,778,199.81
  5. Step 5: Solve for x
    x = 814,778,199.81/28,175.13
  6. Step 6: Final answer
    x = 28,918.35

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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.