Home / 31,416.03-43,357.64-17,988.75

Finding the Fourth Proportional to 31,416.03, 43,357.64 and 17,988.75

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Solution

The fourth proportional to 31,416.03, 43,357.64 and 17,988.75 is: 24,826.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,416.03 : 43,357.64 = 17,988.75 : x
  2. Step 2: Convert to fraction form
    31,416.03/43,357.64 = 17,988.75/x
  3. Step 3: Cross multiply
    31,416.03x = 43,357.64 × 17,988.75
  4. Step 4: Simplify right side
    31,416.03x = 779,949,656.61
  5. Step 5: Solve for x
    x = 779,949,656.61/31,416.03
  6. Step 6: Final answer
    x = 24,826.49

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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.