Home / 29,288.09-40,417.75-15,859.34

Finding the Fourth Proportional to 29,288.09, 40,417.75 and 15,859.34

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Solution

The fourth proportional to 29,288.09, 40,417.75 and 15,859.34 is: 21,886.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,288.09 : 40,417.75 = 15,859.34 : x
  2. Step 2: Convert to fraction form
    29,288.09/40,417.75 = 15,859.34/x
  3. Step 3: Cross multiply
    29,288.09x = 40,417.75 × 15,859.34
  4. Step 4: Simplify right side
    29,288.09x = 640,999,005.45
  5. Step 5: Solve for x
    x = 640,999,005.45/29,288.09
  6. Step 6: Final answer
    x = 21,886.00

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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.