Home / 31,415.52-43,357.50-17,988.96

Finding the Fourth Proportional to 31,415.52, 43,357.50 and 17,988.96

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Solution

The fourth proportional to 31,415.52, 43,357.50 and 17,988.96 is: 24,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,415.52 : 43,357.50 = 17,988.96 : x
  2. Step 2: Convert to fraction form
    31,415.52/43,357.50 = 17,988.96/x
  3. Step 3: Cross multiply
    31,415.52x = 43,357.50 × 17,988.96
  4. Step 4: Simplify right side
    31,415.52x = 779,956,333.20
  5. Step 5: Solve for x
    x = 779,956,333.20/31,415.52
  6. Step 6: Final answer
    x = 24,827.10

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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.