Home / 29,281.79-40,408.59-15,852.70

Finding the Fourth Proportional to 29,281.79, 40,408.59 and 15,852.70

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Solution

The fourth proportional to 29,281.79, 40,408.59 and 15,852.70 is: 21,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,281.79 : 40,408.59 = 15,852.70 : x
  2. Step 2: Convert to fraction form
    29,281.79/40,408.59 = 15,852.70/x
  3. Step 3: Cross multiply
    29,281.79x = 40,408.59 × 15,852.70
  4. Step 4: Simplify right side
    29,281.79x = 640,585,254.69
  5. Step 5: Solve for x
    x = 640,585,254.69/29,281.79
  6. Step 6: Final answer
    x = 21,876.57

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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.