Home / 28,301.45-39,056.75-15,554.99

Finding the Fourth Proportional to 28,301.45, 39,056.75 and 15,554.99

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Solution

The fourth proportional to 28,301.45, 39,056.75 and 15,554.99 is: 21,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.45 : 39,056.75 = 15,554.99 : x
  2. Step 2: Convert to fraction form
    28,301.45/39,056.75 = 15,554.99/x
  3. Step 3: Cross multiply
    28,301.45x = 39,056.75 × 15,554.99
  4. Step 4: Simplify right side
    28,301.45x = 607,527,355.68
  5. Step 5: Solve for x
    x = 607,527,355.68/28,301.45
  6. Step 6: Final answer
    x = 21,466.30

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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.