Home / 28,070.56-38,730.36-16,137.28

Finding the Fourth Proportional to 28,070.56, 38,730.36 and 16,137.28

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Solution

The fourth proportional to 28,070.56, 38,730.36 and 16,137.28 is: 22,265.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.56 : 38,730.36 = 16,137.28 : x
  2. Step 2: Convert to fraction form
    28,070.56/38,730.36 = 16,137.28/x
  3. Step 3: Cross multiply
    28,070.56x = 38,730.36 × 16,137.28
  4. Step 4: Simplify right side
    28,070.56x = 625,002,663.82
  5. Step 5: Solve for x
    x = 625,002,663.82/28,070.56
  6. Step 6: Final answer
    x = 22,265.41

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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.