Home / 29,315.36-40,455.08-15,886.94

Finding the Fourth Proportional to 29,315.36, 40,455.08 and 15,886.94

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Solution

The fourth proportional to 29,315.36, 40,455.08 and 15,886.94 is: 21,923.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,315.36 : 40,455.08 = 15,886.94 : x
  2. Step 2: Convert to fraction form
    29,315.36/40,455.08 = 15,886.94/x
  3. Step 3: Cross multiply
    29,315.36x = 40,455.08 × 15,886.94
  4. Step 4: Simplify right side
    29,315.36x = 642,707,428.66
  5. Step 5: Solve for x
    x = 642,707,428.66/29,315.36
  6. Step 6: Final answer
    x = 21,923.91

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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.