Home / 22,920.16-34,536.40-18,851.30

Finding the Fourth Proportional to 22,920.16, 34,536.40 and 18,851.30

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Solution

The fourth proportional to 22,920.16, 34,536.40 and 18,851.30 is: 28,405.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,920.16 : 34,536.40 = 18,851.30 : x
  2. Step 2: Convert to fraction form
    22,920.16/34,536.40 = 18,851.30/x
  3. Step 3: Cross multiply
    22,920.16x = 34,536.40 × 18,851.30
  4. Step 4: Simplify right side
    22,920.16x = 651,056,037.32
  5. Step 5: Solve for x
    x = 651,056,037.32/22,920.16
  6. Step 6: Final answer
    x = 28,405.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.