Home / 43,007.04-64,519.20-13,430.16

Finding the Fourth Proportional to 43,007.04, 64,519.20 and 13,430.16

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Solution

The fourth proportional to 43,007.04, 64,519.20 and 13,430.16 is: 20,147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,007.04 : 64,519.20 = 13,430.16 : x
  2. Step 2: Convert to fraction form
    43,007.04/64,519.20 = 13,430.16/x
  3. Step 3: Cross multiply
    43,007.04x = 64,519.20 × 13,430.16
  4. Step 4: Simplify right side
    43,007.04x = 866,503,179.07
  5. Step 5: Solve for x
    x = 866,503,179.07/43,007.04
  6. Step 6: Final answer
    x = 20,147.94

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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.