Home / 42,915.57-64,361.07-14,828.28

Finding the Fourth Proportional to 42,915.57, 64,361.07 and 14,828.28

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Solution

The fourth proportional to 42,915.57, 64,361.07 and 14,828.28 is: 22,238.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,915.57 : 64,361.07 = 14,828.28 : x
  2. Step 2: Convert to fraction form
    42,915.57/64,361.07 = 14,828.28/x
  3. Step 3: Cross multiply
    42,915.57x = 64,361.07 × 14,828.28
  4. Step 4: Simplify right side
    42,915.57x = 954,363,967.06
  5. Step 5: Solve for x
    x = 954,363,967.06/42,915.57
  6. Step 6: Final answer
    x = 22,238.18

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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.