Home / 28,971.04-39,979.02-16,395.52

Finding the Fourth Proportional to 28,971.04, 39,979.02 and 16,395.52

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Solution

The fourth proportional to 28,971.04, 39,979.02 and 16,395.52 is: 22,625.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.04 : 39,979.02 = 16,395.52 : x
  2. Step 2: Convert to fraction form
    28,971.04/39,979.02 = 16,395.52/x
  3. Step 3: Cross multiply
    28,971.04x = 39,979.02 × 16,395.52
  4. Step 4: Simplify right side
    28,971.04x = 655,476,821.99
  5. Step 5: Solve for x
    x = 655,476,821.99/28,971.04
  6. Step 6: Final answer
    x = 22,625.24

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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.