Home / 20,283.49-30,435.95-14,398.39

Finding the Fourth Proportional to 20,283.49, 30,435.95 and 14,398.39

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Solution

The fourth proportional to 20,283.49, 30,435.95 and 14,398.39 is: 21,605.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.49 : 30,435.95 = 14,398.39 : x
  2. Step 2: Convert to fraction form
    20,283.49/30,435.95 = 14,398.39/x
  3. Step 3: Cross multiply
    20,283.49x = 30,435.95 × 14,398.39
  4. Step 4: Simplify right side
    20,283.49x = 438,228,678.12
  5. Step 5: Solve for x
    x = 438,228,678.12/20,283.49
  6. Step 6: Final answer
    x = 21,605.19

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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.