Home / 29,315.76-40,509.32-21,344.08

Finding the Fourth Proportional to 29,315.76, 40,509.32 and 21,344.08

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Solution

The fourth proportional to 29,315.76, 40,509.32 and 21,344.08 is: 29,493.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,315.76 : 40,509.32 = 21,344.08 : x
  2. Step 2: Convert to fraction form
    29,315.76/40,509.32 = 21,344.08/x
  3. Step 3: Cross multiply
    29,315.76x = 40,509.32 × 21,344.08
  4. Step 4: Simplify right side
    29,315.76x = 864,634,166.83
  5. Step 5: Solve for x
    x = 864,634,166.83/29,315.76
  6. Step 6: Final answer
    x = 29,493.83

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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.