Home / 42,915.84-64,391.04-15,233.28

Finding the Fourth Proportional to 42,915.84, 64,391.04 and 15,233.28

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Solution

The fourth proportional to 42,915.84, 64,391.04 and 15,233.28 is: 22,856.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,915.84 : 64,391.04 = 15,233.28 : x
  2. Step 2: Convert to fraction form
    42,915.84/64,391.04 = 15,233.28/x
  3. Step 3: Cross multiply
    42,915.84x = 64,391.04 × 15,233.28
  4. Step 4: Simplify right side
    42,915.84x = 980,886,741.81
  5. Step 5: Solve for x
    x = 980,886,741.81/42,915.84
  6. Step 6: Final answer
    x = 22,856.05

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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.