Home / 29,287.94-40,417.16-15,858.90

Finding the Fourth Proportional to 29,287.94, 40,417.16 and 15,858.90

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Solution

The fourth proportional to 29,287.94, 40,417.16 and 15,858.90 is: 21,885.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,287.94 : 40,417.16 = 15,858.90 : x
  2. Step 2: Convert to fraction form
    29,287.94/40,417.16 = 15,858.90/x
  3. Step 3: Cross multiply
    29,287.94x = 40,417.16 × 15,858.90
  4. Step 4: Simplify right side
    29,287.94x = 640,971,619.43
  5. Step 5: Solve for x
    x = 640,971,619.43/29,287.94
  6. Step 6: Final answer
    x = 21,885.18

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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.