Home / 20,559.34-28,370.55-11,607.58

Finding the Fourth Proportional to 20,559.34, 28,370.55 and 11,607.58

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Solution

The fourth proportional to 20,559.34, 28,370.55 and 11,607.58 is: 16,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.34 : 28,370.55 = 11,607.58 : x
  2. Step 2: Convert to fraction form
    20,559.34/28,370.55 = 11,607.58/x
  3. Step 3: Cross multiply
    20,559.34x = 28,370.55 × 11,607.58
  4. Step 4: Simplify right side
    20,559.34x = 329,313,428.77
  5. Step 5: Solve for x
    x = 329,313,428.77/20,559.34
  6. Step 6: Final answer
    x = 16,017.70

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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.