Home / 25,921.80-38,890.80-10,935.72

Finding the Fourth Proportional to 25,921.80, 38,890.80 and 10,935.72

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Solution

The fourth proportional to 25,921.80, 38,890.80 and 10,935.72 is: 16,407.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,921.80 : 38,890.80 = 10,935.72 : x
  2. Step 2: Convert to fraction form
    25,921.80/38,890.80 = 10,935.72/x
  3. Step 3: Cross multiply
    25,921.80x = 38,890.80 × 10,935.72
  4. Step 4: Simplify right side
    25,921.80x = 425,298,899.38
  5. Step 5: Solve for x
    x = 425,298,899.38/25,921.80
  6. Step 6: Final answer
    x = 16,407.00

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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.