Home / 43,007.52-64,481.28-18,980.16

Finding the Fourth Proportional to 43,007.52, 64,481.28 and 18,980.16

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Solution

The fourth proportional to 43,007.52, 64,481.28 and 18,980.16 is: 28,457.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,007.52 : 64,481.28 = 18,980.16 : x
  2. Step 2: Convert to fraction form
    43,007.52/64,481.28 = 18,980.16/x
  3. Step 3: Cross multiply
    43,007.52x = 64,481.28 × 18,980.16
  4. Step 4: Simplify right side
    43,007.52x = 1,223,865,011.40
  5. Step 5: Solve for x
    x = 1,223,865,011.40/43,007.52
  6. Step 6: Final answer
    x = 28,457.00

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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.