Home / 22,280.19-30,742.43-13,783.29

Finding the Fourth Proportional to 22,280.19, 30,742.43 and 13,783.29

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Solution

The fourth proportional to 22,280.19, 30,742.43 and 13,783.29 is: 19,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.19 : 30,742.43 = 13,783.29 : x
  2. Step 2: Convert to fraction form
    22,280.19/30,742.43 = 13,783.29/x
  3. Step 3: Cross multiply
    22,280.19x = 30,742.43 × 13,783.29
  4. Step 4: Simplify right side
    22,280.19x = 423,731,827.99
  5. Step 5: Solve for x
    x = 423,731,827.99/22,280.19
  6. Step 6: Final answer
    x = 19,018.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.