Home / 29,208.28-40,307.40-15,960.28

Finding the Fourth Proportional to 29,208.28, 40,307.40 and 15,960.28

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Solution

The fourth proportional to 29,208.28, 40,307.40 and 15,960.28 is: 22,025.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,208.28 : 40,307.40 = 15,960.28 : x
  2. Step 2: Convert to fraction form
    29,208.28/40,307.40 = 15,960.28/x
  3. Step 3: Cross multiply
    29,208.28x = 40,307.40 × 15,960.28
  4. Step 4: Simplify right side
    29,208.28x = 643,317,390.07
  5. Step 5: Solve for x
    x = 643,317,390.07/29,208.28
  6. Step 6: Final answer
    x = 22,025.17

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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.