Home / 28,427.80-42,392.99-26,875

Finding the Fourth Proportional to 28,427.80, 42,392.99 and 26,875

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Solution

The fourth proportional to 28,427.80, 42,392.99 and 26,875 is: 40,077.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427.80 : 42,392.99 = 26,875 : x
  2. Step 2: Convert to fraction form
    28,427.80/42,392.99 = 26,875/x
  3. Step 3: Cross multiply
    28,427.80x = 42,392.99 × 26,875
  4. Step 4: Simplify right side
    28,427.80x = 1,139,311,606.25
  5. Step 5: Solve for x
    x = 1,139,311,606.25/28,427.80
  6. Step 6: Final answer
    x = 40,077.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.