Home / 19,276.80-28,886.40-16,339.20

Finding the Fourth Proportional to 19,276.80, 28,886.40 and 16,339.20

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Solution

The fourth proportional to 19,276.80, 28,886.40 and 16,339.20 is: 24,484.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.80 : 28,886.40 = 16,339.20 : x
  2. Step 2: Convert to fraction form
    19,276.80/28,886.40 = 16,339.20/x
  3. Step 3: Cross multiply
    19,276.80x = 28,886.40 × 16,339.20
  4. Step 4: Simplify right side
    19,276.80x = 471,980,666.88
  5. Step 5: Solve for x
    x = 471,980,666.88/19,276.80
  6. Step 6: Final answer
    x = 24,484.39

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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.