Home / 28,941.12-39,895.20-22,642.56

Finding the Fourth Proportional to 28,941.12, 39,895.20 and 22,642.56

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Solution

The fourth proportional to 28,941.12, 39,895.20 and 22,642.56 is: 31,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.12 : 39,895.20 = 22,642.56 : x
  2. Step 2: Convert to fraction form
    28,941.12/39,895.20 = 22,642.56/x
  3. Step 3: Cross multiply
    28,941.12x = 39,895.20 × 22,642.56
  4. Step 4: Simplify right side
    28,941.12x = 903,329,459.71
  5. Step 5: Solve for x
    x = 903,329,459.71/28,941.12
  6. Step 6: Final answer
    x = 31,212.66

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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.