Home / 43,273.12-64,909.68-15,570.40

Finding the Fourth Proportional to 43,273.12, 64,909.68 and 15,570.40

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Solution

The fourth proportional to 43,273.12, 64,909.68 and 15,570.40 is: 23,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,273.12 : 64,909.68 = 15,570.40 : x
  2. Step 2: Convert to fraction form
    43,273.12/64,909.68 = 15,570.40/x
  3. Step 3: Cross multiply
    43,273.12x = 64,909.68 × 15,570.40
  4. Step 4: Simplify right side
    43,273.12x = 1,010,669,681.47
  5. Step 5: Solve for x
    x = 1,010,669,681.47/43,273.12
  6. Step 6: Final answer
    x = 23,355.60

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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.