Home / 21,058.87-29,048.66-12,673.75

Finding the Fourth Proportional to 21,058.87, 29,048.66 and 12,673.75

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Solution

The fourth proportional to 21,058.87, 29,048.66 and 12,673.75 is: 17,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.87 : 29,048.66 = 12,673.75 : x
  2. Step 2: Convert to fraction form
    21,058.87/29,048.66 = 12,673.75/x
  3. Step 3: Cross multiply
    21,058.87x = 29,048.66 × 12,673.75
  4. Step 4: Simplify right side
    21,058.87x = 368,155,391.31
  5. Step 5: Solve for x
    x = 368,155,391.31/21,058.87
  6. Step 6: Final answer
    x = 17,482.20

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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.