Home / 28,802.79-39,745.82-16,055.40

Finding the Fourth Proportional to 28,802.79, 39,745.82 and 16,055.40

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Solution

The fourth proportional to 28,802.79, 39,745.82 and 16,055.40 is: 22,155.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,802.79 : 39,745.82 = 16,055.40 : x
  2. Step 2: Convert to fraction form
    28,802.79/39,745.82 = 16,055.40/x
  3. Step 3: Cross multiply
    28,802.79x = 39,745.82 × 16,055.40
  4. Step 4: Simplify right side
    28,802.79x = 638,135,012.10
  5. Step 5: Solve for x
    x = 638,135,012.10/28,802.79
  6. Step 6: Final answer
    x = 22,155.32

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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.