Home / 43,089.89-64,634.85-13,509.99

Finding the Fourth Proportional to 43,089.89, 64,634.85 and 13,509.99

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Solution

The fourth proportional to 43,089.89, 64,634.85 and 13,509.99 is: 20,264.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,089.89 : 64,634.85 = 13,509.99 : x
  2. Step 2: Convert to fraction form
    43,089.89/64,634.85 = 13,509.99/x
  3. Step 3: Cross multiply
    43,089.89x = 64,634.85 × 13,509.99
  4. Step 4: Simplify right side
    43,089.89x = 873,216,177.15
  5. Step 5: Solve for x
    x = 873,216,177.15/43,089.89
  6. Step 6: Final answer
    x = 20,264.99

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1.5x scale

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.