Home / 43,007.64-64,511.47-13,428.01

Finding the Fourth Proportional to 43,007.64, 64,511.47 and 13,428.01

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Solution

The fourth proportional to 43,007.64, 64,511.47 and 13,428.01 is: 20,142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,007.64 : 64,511.47 = 13,428.01 : x
  2. Step 2: Convert to fraction form
    43,007.64/64,511.47 = 13,428.01/x
  3. Step 3: Cross multiply
    43,007.64x = 64,511.47 × 13,428.01
  4. Step 4: Simplify right side
    43,007.64x = 866,260,686.17
  5. Step 5: Solve for x
    x = 866,260,686.17/43,007.64
  6. Step 6: Final answer
    x = 20,142.02

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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.