Home / 22,281.95-30,749.95-12,723.40

Finding the Fourth Proportional to 22,281.95, 30,749.95 and 12,723.40

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Solution

The fourth proportional to 22,281.95, 30,749.95 and 12,723.40 is: 17,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,281.95 : 30,749.95 = 12,723.40 : x
  2. Step 2: Convert to fraction form
    22,281.95/30,749.95 = 12,723.40/x
  3. Step 3: Cross multiply
    22,281.95x = 30,749.95 × 12,723.40
  4. Step 4: Simplify right side
    22,281.95x = 391,243,913.83
  5. Step 5: Solve for x
    x = 391,243,913.83/22,281.95
  6. Step 6: Final answer
    x = 17,558.78

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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.