Home / 23,390.64-34,915.32-20,438.16

Finding the Fourth Proportional to 23,390.64, 34,915.32 and 20,438.16

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Solution

The fourth proportional to 23,390.64, 34,915.32 and 20,438.16 is: 30,508.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,390.64 : 34,915.32 = 20,438.16 : x
  2. Step 2: Convert to fraction form
    23,390.64/34,915.32 = 20,438.16/x
  3. Step 3: Cross multiply
    23,390.64x = 34,915.32 × 20,438.16
  4. Step 4: Simplify right side
    23,390.64x = 713,604,896.61
  5. Step 5: Solve for x
    x = 713,604,896.61/23,390.64
  6. Step 6: Final answer
    x = 30,508.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.