Home / 31,011.24-42,795.56-16,864.08

Finding the Fourth Proportional to 31,011.24, 42,795.56 and 16,864.08

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Solution

The fourth proportional to 31,011.24, 42,795.56 and 16,864.08 is: 23,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,011.24 : 42,795.56 = 16,864.08 : x
  2. Step 2: Convert to fraction form
    31,011.24/42,795.56 = 16,864.08/x
  3. Step 3: Cross multiply
    31,011.24x = 42,795.56 × 16,864.08
  4. Step 4: Simplify right side
    31,011.24x = 721,707,747.48
  5. Step 5: Solve for x
    x = 721,707,747.48/31,011.24
  6. Step 6: Final answer
    x = 23,272.46

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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.