Home / 31,915.08-44,043.48-21,009.24

Finding the Fourth Proportional to 31,915.08, 44,043.48 and 21,009.24

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Solution

The fourth proportional to 31,915.08, 44,043.48 and 21,009.24 is: 28,993.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,915.08 : 44,043.48 = 21,009.24 : x
  2. Step 2: Convert to fraction form
    31,915.08/44,043.48 = 21,009.24/x
  3. Step 3: Cross multiply
    31,915.08x = 44,043.48 × 21,009.24
  4. Step 4: Simplify right side
    31,915.08x = 925,320,041.76
  5. Step 5: Solve for x
    x = 925,320,041.76/31,915.08
  6. Step 6: Final answer
    x = 28,993.19

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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.