Home / 42,915.81-64,376.54-14,838.58

Finding the Fourth Proportional to 42,915.81, 64,376.54 and 14,838.58

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Solution

The fourth proportional to 42,915.81, 64,376.54 and 14,838.58 is: 22,258.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,915.81 : 64,376.54 = 14,838.58 : x
  2. Step 2: Convert to fraction form
    42,915.81/64,376.54 = 14,838.58/x
  3. Step 3: Cross multiply
    42,915.81x = 64,376.54 × 14,838.58
  4. Step 4: Simplify right side
    42,915.81x = 955,256,315.07
  5. Step 5: Solve for x
    x = 955,256,315.07/42,915.81
  6. Step 6: Final answer
    x = 22,258.84

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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.