Home / 28,301.47-39,053.49-15,554.51

Finding the Fourth Proportional to 28,301.47, 39,053.49 and 15,554.51

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Solution

The fourth proportional to 28,301.47, 39,053.49 and 15,554.51 is: 21,463.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.47 : 39,053.49 = 15,554.51 : x
  2. Step 2: Convert to fraction form
    28,301.47/39,053.49 = 15,554.51/x
  3. Step 3: Cross multiply
    28,301.47x = 39,053.49 × 15,554.51
  4. Step 4: Simplify right side
    28,301.47x = 607,457,940.04
  5. Step 5: Solve for x
    x = 607,457,940.04/28,301.47
  6. Step 6: Final answer
    x = 21,463.83

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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.