Home / 20,788.65-31,108.86-16,655.22

Finding the Fourth Proportional to 20,788.65, 31,108.86 and 16,655.22

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Solution

The fourth proportional to 20,788.65, 31,108.86 and 16,655.22 is: 24,923.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,788.65 : 31,108.86 = 16,655.22 : x
  2. Step 2: Convert to fraction form
    20,788.65/31,108.86 = 16,655.22/x
  3. Step 3: Cross multiply
    20,788.65x = 31,108.86 × 16,655.22
  4. Step 4: Simplify right side
    20,788.65x = 518,124,907.25
  5. Step 5: Solve for x
    x = 518,124,907.25/20,788.65
  6. Step 6: Final answer
    x = 24,923.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.