Home / 20,494.50-28,248.40-14,518.50

Finding the Fourth Proportional to 20,494.50, 28,248.40 and 14,518.50

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Solution

The fourth proportional to 20,494.50, 28,248.40 and 14,518.50 is: 20,011.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.50 : 28,248.40 = 14,518.50 : x
  2. Step 2: Convert to fraction form
    20,494.50/28,248.40 = 14,518.50/x
  3. Step 3: Cross multiply
    20,494.50x = 28,248.40 × 14,518.50
  4. Step 4: Simplify right side
    20,494.50x = 410,124,395.40
  5. Step 5: Solve for x
    x = 410,124,395.40/20,494.50
  6. Step 6: Final answer
    x = 20,011.44

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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.