Home / 43,223.40-64,835.10-13,643.52

Finding the Fourth Proportional to 43,223.40, 64,835.10 and 13,643.52

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Solution

The fourth proportional to 43,223.40, 64,835.10 and 13,643.52 is: 20,465.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,223.40 : 64,835.10 = 13,643.52 : x
  2. Step 2: Convert to fraction form
    43,223.40/64,835.10 = 13,643.52/x
  3. Step 3: Cross multiply
    43,223.40x = 64,835.10 × 13,643.52
  4. Step 4: Simplify right side
    43,223.40x = 884,578,983.55
  5. Step 5: Solve for x
    x = 884,578,983.55/43,223.40
  6. Step 6: Final answer
    x = 20,465.28

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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.