Home / 25,551.28-38,302.02-12,220.79

Finding the Fourth Proportional to 25,551.28, 38,302.02 and 12,220.79

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Solution

The fourth proportional to 25,551.28, 38,302.02 and 12,220.79 is: 18,319.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,551.28 : 38,302.02 = 12,220.79 : x
  2. Step 2: Convert to fraction form
    25,551.28/38,302.02 = 12,220.79/x
  3. Step 3: Cross multiply
    25,551.28x = 38,302.02 × 12,220.79
  4. Step 4: Simplify right side
    25,551.28x = 468,081,056.32
  5. Step 5: Solve for x
    x = 468,081,056.32/25,551.28
  6. Step 6: Final answer
    x = 18,319.28

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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.