Home / 31,328.34-43,235.09-17,181.20

Finding the Fourth Proportional to 31,328.34, 43,235.09 and 17,181.20

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Solution

The fourth proportional to 31,328.34, 43,235.09 and 17,181.20 is: 23,711.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,328.34 : 43,235.09 = 17,181.20 : x
  2. Step 2: Convert to fraction form
    31,328.34/43,235.09 = 17,181.20/x
  3. Step 3: Cross multiply
    31,328.34x = 43,235.09 × 17,181.20
  4. Step 4: Simplify right side
    31,328.34x = 742,830,426.23
  5. Step 5: Solve for x
    x = 742,830,426.23/31,328.34
  6. Step 6: Final answer
    x = 23,711.13

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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.