Home / 21,320.42-31,913.66-17,587.94

Finding the Fourth Proportional to 21,320.42, 31,913.66 and 17,587.94

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Solution

The fourth proportional to 21,320.42, 31,913.66 and 17,587.94 is: 26,326.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320.42 : 31,913.66 = 17,587.94 : x
  2. Step 2: Convert to fraction form
    21,320.42/31,913.66 = 17,587.94/x
  3. Step 3: Cross multiply
    21,320.42x = 31,913.66 × 17,587.94
  4. Step 4: Simplify right side
    21,320.42x = 561,295,421.66
  5. Step 5: Solve for x
    x = 561,295,421.66/21,320.42
  6. Step 6: Final answer
    x = 26,326.66

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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.