Home / 16,905.70-25,358.55-14,281.30

Finding the Fourth Proportional to 16,905.70, 25,358.55 and 14,281.30

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Solution

The fourth proportional to 16,905.70, 25,358.55 and 14,281.30 is: 21,421.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.70 : 25,358.55 = 14,281.30 : x
  2. Step 2: Convert to fraction form
    16,905.70/25,358.55 = 14,281.30/x
  3. Step 3: Cross multiply
    16,905.70x = 25,358.55 × 14,281.30
  4. Step 4: Simplify right side
    16,905.70x = 362,153,060.12
  5. Step 5: Solve for x
    x = 362,153,060.12/16,905.70
  6. Step 6: Final answer
    x = 21,421.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.