Home / 29,599.40-40,809.06-21,111.20

Finding the Fourth Proportional to 29,599.40, 40,809.06 and 21,111.20

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Solution

The fourth proportional to 29,599.40, 40,809.06 and 21,111.20 is: 29,106.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,599.40 : 40,809.06 = 21,111.20 : x
  2. Step 2: Convert to fraction form
    29,599.40/40,809.06 = 21,111.20/x
  3. Step 3: Cross multiply
    29,599.40x = 40,809.06 × 21,111.20
  4. Step 4: Simplify right side
    29,599.40x = 861,528,227.47
  5. Step 5: Solve for x
    x = 861,528,227.47/29,599.40
  6. Step 6: Final answer
    x = 29,106.27

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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.