Home / 31,220.64-43,085.12-17,074.40

Finding the Fourth Proportional to 31,220.64, 43,085.12 and 17,074.40

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Solution

The fourth proportional to 31,220.64, 43,085.12 and 17,074.40 is: 23,563.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,220.64 : 43,085.12 = 17,074.40 : x
  2. Step 2: Convert to fraction form
    31,220.64/43,085.12 = 17,074.40/x
  3. Step 3: Cross multiply
    31,220.64x = 43,085.12 × 17,074.40
  4. Step 4: Simplify right side
    31,220.64x = 735,652,272.13
  5. Step 5: Solve for x
    x = 735,652,272.13/31,220.64
  6. Step 6: Final answer
    x = 23,563.01

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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.