Home / 18,655.42-25,756.89-14,340.87

Finding the Fourth Proportional to 18,655.42, 25,756.89 and 14,340.87

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Solution

The fourth proportional to 18,655.42, 25,756.89 and 14,340.87 is: 19,799.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.42 : 25,756.89 = 14,340.87 : x
  2. Step 2: Convert to fraction form
    18,655.42/25,756.89 = 14,340.87/x
  3. Step 3: Cross multiply
    18,655.42x = 25,756.89 × 14,340.87
  4. Step 4: Simplify right side
    18,655.42x = 369,376,082.31
  5. Step 5: Solve for x
    x = 369,376,082.31/18,655.42
  6. Step 6: Final answer
    x = 19,799.93

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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.