Home / 25,920.80-38,889.30-10,934.72

Finding the Fourth Proportional to 25,920.80, 38,889.30 and 10,934.72

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Solution

The fourth proportional to 25,920.80, 38,889.30 and 10,934.72 is: 16,405.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.80 : 38,889.30 = 10,934.72 : x
  2. Step 2: Convert to fraction form
    25,920.80/38,889.30 = 10,934.72/x
  3. Step 3: Cross multiply
    25,920.80x = 38,889.30 × 10,934.72
  4. Step 4: Simplify right side
    25,920.80x = 425,243,606.50
  5. Step 5: Solve for x
    x = 425,243,606.50/25,920.80
  6. Step 6: Final answer
    x = 16,405.50

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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.