Home / 28,017.82-42,030.37-11,378.39

Finding the Fourth Proportional to 28,017.82, 42,030.37 and 11,378.39

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Solution

The fourth proportional to 28,017.82, 42,030.37 and 11,378.39 is: 17,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.82 : 42,030.37 = 11,378.39 : x
  2. Step 2: Convert to fraction form
    28,017.82/42,030.37 = 11,378.39/x
  3. Step 3: Cross multiply
    28,017.82x = 42,030.37 × 11,378.39
  4. Step 4: Simplify right side
    28,017.82x = 478,238,199.51
  5. Step 5: Solve for x
    x = 478,238,199.51/28,017.82
  6. Step 6: Final answer
    x = 17,069.07

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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.