Home / 18,936.48-28,220.08-18,366.40

Finding the Fourth Proportional to 18,936.48, 28,220.08 and 18,366.40

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Solution

The fourth proportional to 18,936.48, 28,220.08 and 18,366.40 is: 27,370.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.48 : 28,220.08 = 18,366.40 : x
  2. Step 2: Convert to fraction form
    18,936.48/28,220.08 = 18,366.40/x
  3. Step 3: Cross multiply
    18,936.48x = 28,220.08 × 18,366.40
  4. Step 4: Simplify right side
    18,936.48x = 518,301,277.31
  5. Step 5: Solve for x
    x = 518,301,277.31/18,936.48
  6. Step 6: Final answer
    x = 27,370.52

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1.5x scale

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.