Home / 25,206.48-34,784.92-15,642.80

Finding the Fourth Proportional to 25,206.48, 34,784.92 and 15,642.80

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Solution

The fourth proportional to 25,206.48, 34,784.92 and 15,642.80 is: 21,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,206.48 : 34,784.92 = 15,642.80 : x
  2. Step 2: Convert to fraction form
    25,206.48/34,784.92 = 15,642.80/x
  3. Step 3: Cross multiply
    25,206.48x = 34,784.92 × 15,642.80
  4. Step 4: Simplify right side
    25,206.48x = 544,133,546.58
  5. Step 5: Solve for x
    x = 544,133,546.58/25,206.48
  6. Step 6: Final answer
    x = 21,587.05

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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.