Home / 42,823.49-64,235.03-19,124.91

Finding the Fourth Proportional to 42,823.49, 64,235.03 and 19,124.91

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Solution

The fourth proportional to 42,823.49, 64,235.03 and 19,124.91 is: 28,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,823.49 : 64,235.03 = 19,124.91 : x
  2. Step 2: Convert to fraction form
    42,823.49/64,235.03 = 19,124.91/x
  3. Step 3: Cross multiply
    42,823.49x = 64,235.03 × 19,124.91
  4. Step 4: Simplify right side
    42,823.49x = 1,228,489,071.97
  5. Step 5: Solve for x
    x = 1,228,489,071.97/42,823.49
  6. Step 6: Final answer
    x = 28,687.27

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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.