Home / 30,866.31-42,595.56-16,719.16

Finding the Fourth Proportional to 30,866.31, 42,595.56 and 16,719.16

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Solution

The fourth proportional to 30,866.31, 42,595.56 and 16,719.16 is: 23,072.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,866.31 : 42,595.56 = 16,719.16 : x
  2. Step 2: Convert to fraction form
    30,866.31/42,595.56 = 16,719.16/x
  3. Step 3: Cross multiply
    30,866.31x = 42,595.56 × 16,719.16
  4. Step 4: Simplify right side
    30,866.31x = 712,161,982.93
  5. Step 5: Solve for x
    x = 712,161,982.93/30,866.31
  6. Step 6: Final answer
    x = 23,072.47

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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.