Home / 27,866.25-38,460.29-16,688.25

Finding the Fourth Proportional to 27,866.25, 38,460.29 and 16,688.25

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Solution

The fourth proportional to 27,866.25, 38,460.29 and 16,688.25 is: 23,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,866.25 : 38,460.29 = 16,688.25 : x
  2. Step 2: Convert to fraction form
    27,866.25/38,460.29 = 16,688.25/x
  3. Step 3: Cross multiply
    27,866.25x = 38,460.29 × 16,688.25
  4. Step 4: Simplify right side
    27,866.25x = 641,834,851.15
  5. Step 5: Solve for x
    x = 641,834,851.15/27,866.25
  6. Step 6: Final answer
    x = 23,032.70

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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.