Home / 31,412.13-43,349.64-17,984.76

Finding the Fourth Proportional to 31,412.13, 43,349.64 and 17,984.76

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Solution

The fourth proportional to 31,412.13, 43,349.64 and 17,984.76 is: 24,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,412.13 : 43,349.64 = 17,984.76 : x
  2. Step 2: Convert to fraction form
    31,412.13/43,349.64 = 17,984.76/x
  3. Step 3: Cross multiply
    31,412.13x = 43,349.64 × 17,984.76
  4. Step 4: Simplify right side
    31,412.13x = 779,632,871.49
  5. Step 5: Solve for x
    x = 779,632,871.49/31,412.13
  6. Step 6: Final answer
    x = 24,819.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.