Home / 31,355.84-43,271.88-17,929.28

Finding the Fourth Proportional to 31,355.84, 43,271.88 and 17,929.28

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Solution

The fourth proportional to 31,355.84, 43,271.88 and 17,929.28 is: 24,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355.84 : 43,271.88 = 17,929.28 : x
  2. Step 2: Convert to fraction form
    31,355.84/43,271.88 = 17,929.28/x
  3. Step 3: Cross multiply
    31,355.84x = 43,271.88 × 17,929.28
  4. Step 4: Simplify right side
    31,355.84x = 775,833,652.65
  5. Step 5: Solve for x
    x = 775,833,652.65/31,355.84
  6. Step 6: Final answer
    x = 24,742.88

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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.