Home / 25,905.62-38,870.73-13,423.32

Finding the Fourth Proportional to 25,905.62, 38,870.73 and 13,423.32

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Solution

The fourth proportional to 25,905.62, 38,870.73 and 13,423.32 is: 20,141.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905.62 : 38,870.73 = 13,423.32 : x
  2. Step 2: Convert to fraction form
    25,905.62/38,870.73 = 13,423.32/x
  3. Step 3: Cross multiply
    25,905.62x = 38,870.73 × 13,423.32
  4. Step 4: Simplify right side
    25,905.62x = 521,774,247.42
  5. Step 5: Solve for x
    x = 521,774,247.42/25,905.62
  6. Step 6: Final answer
    x = 20,141.35

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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.