Home / 43,303.48-64,957.04-13,720.66

Finding the Fourth Proportional to 43,303.48, 64,957.04 and 13,720.66

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Solution

The fourth proportional to 43,303.48, 64,957.04 and 13,720.66 is: 20,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,303.48 : 64,957.04 = 13,720.66 : x
  2. Step 2: Convert to fraction form
    43,303.48/64,957.04 = 13,720.66/x
  3. Step 3: Cross multiply
    43,303.48x = 64,957.04 × 13,720.66
  4. Step 4: Simplify right side
    43,303.48x = 891,253,332.36
  5. Step 5: Solve for x
    x = 891,253,332.36/43,303.48
  6. Step 6: Final answer
    x = 20,581.56

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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.