Home / 16,920.80-25,397.40-14,458.40

Finding the Fourth Proportional to 16,920.80, 25,397.40 and 14,458.40

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Solution

The fourth proportional to 16,920.80, 25,397.40 and 14,458.40 is: 21,701.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.80 : 25,397.40 = 14,458.40 : x
  2. Step 2: Convert to fraction form
    16,920.80/25,397.40 = 14,458.40/x
  3. Step 3: Cross multiply
    16,920.80x = 25,397.40 × 14,458.40
  4. Step 4: Simplify right side
    16,920.80x = 367,205,768.16
  5. Step 5: Solve for x
    x = 367,205,768.16/16,920.80
  6. Step 6: Final answer
    x = 21,701.44

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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.