Home / 42,957.84-64,425.08-11,785.68

Finding the Fourth Proportional to 42,957.84, 64,425.08 and 11,785.68

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Solution

The fourth proportional to 42,957.84, 64,425.08 and 11,785.68 is: 17,675.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,957.84 : 64,425.08 = 11,785.68 : x
  2. Step 2: Convert to fraction form
    42,957.84/64,425.08 = 11,785.68/x
  3. Step 3: Cross multiply
    42,957.84x = 64,425.08 × 11,785.68
  4. Step 4: Simplify right side
    42,957.84x = 759,293,376.85
  5. Step 5: Solve for x
    x = 759,293,376.85/42,957.84
  6. Step 6: Final answer
    x = 17,675.32

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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.