Home / 25,665.81-35,428.82-15,595.89

Finding the Fourth Proportional to 25,665.81, 35,428.82 and 15,595.89

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Solution

The fourth proportional to 25,665.81, 35,428.82 and 15,595.89 is: 21,528.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,665.81 : 35,428.82 = 15,595.89 : x
  2. Step 2: Convert to fraction form
    25,665.81/35,428.82 = 15,595.89/x
  3. Step 3: Cross multiply
    25,665.81x = 35,428.82 × 15,595.89
  4. Step 4: Simplify right side
    25,665.81x = 552,543,979.55
  5. Step 5: Solve for x
    x = 552,543,979.55/25,665.81
  6. Step 6: Final answer
    x = 21,528.41

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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.