Home / 28,299.74-39,053.99-15,554.31

Finding the Fourth Proportional to 28,299.74, 39,053.99 and 15,554.31

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Solution

The fourth proportional to 28,299.74, 39,053.99 and 15,554.31 is: 21,465.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.74 : 39,053.99 = 15,554.31 : x
  2. Step 2: Convert to fraction form
    28,299.74/39,053.99 = 15,554.31/x
  3. Step 3: Cross multiply
    28,299.74x = 39,053.99 × 15,554.31
  4. Step 4: Simplify right side
    28,299.74x = 607,457,979.31
  5. Step 5: Solve for x
    x = 607,457,979.31/28,299.74
  6. Step 6: Final answer
    x = 21,465.15

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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.