Home / 28,177.84-38,881.28-16,240.24

Finding the Fourth Proportional to 28,177.84, 38,881.28 and 16,240.24

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Solution

The fourth proportional to 28,177.84, 38,881.28 and 16,240.24 is: 22,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,177.84 : 38,881.28 = 16,240.24 : x
  2. Step 2: Convert to fraction form
    28,177.84/38,881.28 = 16,240.24/x
  3. Step 3: Cross multiply
    28,177.84x = 38,881.28 × 16,240.24
  4. Step 4: Simplify right side
    28,177.84x = 631,441,318.71
  5. Step 5: Solve for x
    x = 631,441,318.71/28,177.84
  6. Step 6: Final answer
    x = 22,409.15

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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.