Home / 19,421.93-29,097.63-8,900.71

Finding the Fourth Proportional to 19,421.93, 29,097.63 and 8,900.71

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Solution

The fourth proportional to 19,421.93, 29,097.63 and 8,900.71 is: 13,334.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.93 : 29,097.63 = 8,900.71 : x
  2. Step 2: Convert to fraction form
    19,421.93/29,097.63 = 8,900.71/x
  3. Step 3: Cross multiply
    19,421.93x = 29,097.63 × 8,900.71
  4. Step 4: Simplify right side
    19,421.93x = 258,989,493.57
  5. Step 5: Solve for x
    x = 258,989,493.57/19,421.93
  6. Step 6: Final answer
    x = 13,334.90

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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.