Home / 22,355.99-30,854.18-14,421.28

Finding the Fourth Proportional to 22,355.99, 30,854.18 and 14,421.28

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Solution

The fourth proportional to 22,355.99, 30,854.18 and 14,421.28 is: 19,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,355.99 : 30,854.18 = 14,421.28 : x
  2. Step 2: Convert to fraction form
    22,355.99/30,854.18 = 14,421.28/x
  3. Step 3: Cross multiply
    22,355.99x = 30,854.18 × 14,421.28
  4. Step 4: Simplify right side
    22,355.99x = 444,956,768.95
  5. Step 5: Solve for x
    x = 444,956,768.95/22,355.99
  6. Step 6: Final answer
    x = 19,903.25

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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.