Home / 20,597.87-28,426.28-11,646.21

Finding the Fourth Proportional to 20,597.87, 28,426.28 and 11,646.21

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Solution

The fourth proportional to 20,597.87, 28,426.28 and 11,646.21 is: 16,072.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,597.87 : 28,426.28 = 11,646.21 : x
  2. Step 2: Convert to fraction form
    20,597.87/28,426.28 = 11,646.21/x
  3. Step 3: Cross multiply
    20,597.87x = 28,426.28 × 11,646.21
  4. Step 4: Simplify right side
    20,597.87x = 331,058,368.17
  5. Step 5: Solve for x
    x = 331,058,368.17/20,597.87
  6. Step 6: Final answer
    x = 16,072.46

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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.