Home / 29,409.63-40,585.16-15,980.64

Finding the Fourth Proportional to 29,409.63, 40,585.16 and 15,980.64

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Solution

The fourth proportional to 29,409.63, 40,585.16 and 15,980.64 is: 22,053.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,409.63 : 40,585.16 = 15,980.64 : x
  2. Step 2: Convert to fraction form
    29,409.63/40,585.16 = 15,980.64/x
  3. Step 3: Cross multiply
    29,409.63x = 40,585.16 × 15,980.64
  4. Step 4: Simplify right side
    29,409.63x = 648,576,751.40
  5. Step 5: Solve for x
    x = 648,576,751.40/29,409.63
  6. Step 6: Final answer
    x = 22,053.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.