Home / 35,380.08-53,011.80-20,547.36

Finding the Fourth Proportional to 35,380.08, 53,011.80 and 20,547.36

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Solution

The fourth proportional to 35,380.08, 53,011.80 and 20,547.36 is: 30,787.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,380.08 : 53,011.80 = 20,547.36 : x
  2. Step 2: Convert to fraction form
    35,380.08/53,011.80 = 20,547.36/x
  3. Step 3: Cross multiply
    35,380.08x = 53,011.80 × 20,547.36
  4. Step 4: Simplify right side
    35,380.08x = 1,089,252,538.85
  5. Step 5: Solve for x
    x = 1,089,252,538.85/35,380.08
  6. Step 6: Final answer
    x = 30,787.17

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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.