Home / 28,476.34-39,297.35-15,901.09

Finding the Fourth Proportional to 28,476.34, 39,297.35 and 15,901.09

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Solution

The fourth proportional to 28,476.34, 39,297.35 and 15,901.09 is: 21,943.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,476.34 : 39,297.35 = 15,901.09 : x
  2. Step 2: Convert to fraction form
    28,476.34/39,297.35 = 15,901.09/x
  3. Step 3: Cross multiply
    28,476.34x = 39,297.35 × 15,901.09
  4. Step 4: Simplify right side
    28,476.34x = 624,870,699.11
  5. Step 5: Solve for x
    x = 624,870,699.11/28,476.34
  6. Step 6: Final answer
    x = 21,943.50

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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.