Home / 42,915.36-64,391.54-23,207.79

Finding the Fourth Proportional to 42,915.36, 64,391.54 and 23,207.79

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Solution

The fourth proportional to 42,915.36, 64,391.54 and 23,207.79 is: 34,821.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,915.36 : 64,391.54 = 23,207.79 : x
  2. Step 2: Convert to fraction form
    42,915.36/64,391.54 = 23,207.79/x
  3. Step 3: Cross multiply
    42,915.36x = 64,391.54 × 23,207.79
  4. Step 4: Simplify right side
    42,915.36x = 1,494,385,222.06
  5. Step 5: Solve for x
    x = 1,494,385,222.06/42,915.36
  6. Step 6: Final answer
    x = 34,821.69

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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.