Home / 31,224.32-43,085.70-19,889.16

Finding the Fourth Proportional to 31,224.32, 43,085.70 and 19,889.16

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Solution

The fourth proportional to 31,224.32, 43,085.70 and 19,889.16 is: 27,444.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,224.32 : 43,085.70 = 19,889.16 : x
  2. Step 2: Convert to fraction form
    31,224.32/43,085.70 = 19,889.16/x
  3. Step 3: Cross multiply
    31,224.32x = 43,085.70 × 19,889.16
  4. Step 4: Simplify right side
    31,224.32x = 856,938,461.80
  5. Step 5: Solve for x
    x = 856,938,461.80/31,224.32
  6. Step 6: Final answer
    x = 27,444.58

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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.