Home / 42,915.24-64,372.77-13,333.32

Finding the Fourth Proportional to 42,915.24, 64,372.77 and 13,333.32

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Solution

The fourth proportional to 42,915.24, 64,372.77 and 13,333.32 is: 19,999.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,915.24 : 64,372.77 = 13,333.32 : x
  2. Step 2: Convert to fraction form
    42,915.24/64,372.77 = 13,333.32/x
  3. Step 3: Cross multiply
    42,915.24x = 64,372.77 × 13,333.32
  4. Step 4: Simplify right side
    42,915.24x = 858,302,741.70
  5. Step 5: Solve for x
    x = 858,302,741.70/42,915.24
  6. Step 6: Final answer
    x = 19,999.95

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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.