Home / 29,281.39-40,408.30-15,852.63

Finding the Fourth Proportional to 29,281.39, 40,408.30 and 15,852.63

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Solution

The fourth proportional to 29,281.39, 40,408.30 and 15,852.63 is: 21,876.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,281.39 : 40,408.30 = 15,852.63 : x
  2. Step 2: Convert to fraction form
    29,281.39/40,408.30 = 15,852.63/x
  3. Step 3: Cross multiply
    29,281.39x = 40,408.30 × 15,852.63
  4. Step 4: Simplify right side
    29,281.39x = 640,578,000.18
  5. Step 5: Solve for x
    x = 640,578,000.18/29,281.39
  6. Step 6: Final answer
    x = 21,876.63

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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.