Home / 43,020.83-64,528.95-13,435.28

Finding the Fourth Proportional to 43,020.83, 64,528.95 and 13,435.28

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Solution

The fourth proportional to 43,020.83, 64,528.95 and 13,435.28 is: 20,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,020.83 : 64,528.95 = 13,435.28 : x
  2. Step 2: Convert to fraction form
    43,020.83/64,528.95 = 13,435.28/x
  3. Step 3: Cross multiply
    43,020.83x = 64,528.95 × 13,435.28
  4. Step 4: Simplify right side
    43,020.83x = 866,964,511.36
  5. Step 5: Solve for x
    x = 866,964,511.36/43,020.83
  6. Step 6: Final answer
    x = 20,152.20

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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.