Home / 28,969.78-39,957.66-26,587.42

Finding the Fourth Proportional to 28,969.78, 39,957.66 and 26,587.42

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Solution

The fourth proportional to 28,969.78, 39,957.66 and 26,587.42 is: 36,671.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,969.78 : 39,957.66 = 26,587.42 : x
  2. Step 2: Convert to fraction form
    28,969.78/39,957.66 = 26,587.42/x
  3. Step 3: Cross multiply
    28,969.78x = 39,957.66 × 26,587.42
  4. Step 4: Simplify right side
    28,969.78x = 1,062,371,088.64
  5. Step 5: Solve for x
    x = 1,062,371,088.64/28,969.78
  6. Step 6: Final answer
    x = 36,671.70

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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.