Home / 31,409.67-43,347.75-17,985.12

Finding the Fourth Proportional to 31,409.67, 43,347.75 and 17,985.12

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Solution

The fourth proportional to 31,409.67, 43,347.75 and 17,985.12 is: 24,820.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,409.67 : 43,347.75 = 17,985.12 : x
  2. Step 2: Convert to fraction form
    31,409.67/43,347.75 = 17,985.12/x
  3. Step 3: Cross multiply
    31,409.67x = 43,347.75 × 17,985.12
  4. Step 4: Simplify right side
    31,409.67x = 779,614,485.48
  5. Step 5: Solve for x
    x = 779,614,485.48/31,409.67
  6. Step 6: Final answer
    x = 24,820.84

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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.