Home / 27,990.61-38,624.50-16,658.27

Finding the Fourth Proportional to 27,990.61, 38,624.50 and 16,658.27

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Solution

The fourth proportional to 27,990.61, 38,624.50 and 16,658.27 is: 22,986.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.61 : 38,624.50 = 16,658.27 : x
  2. Step 2: Convert to fraction form
    27,990.61/38,624.50 = 16,658.27/x
  3. Step 3: Cross multiply
    27,990.61x = 38,624.50 × 16,658.27
  4. Step 4: Simplify right side
    27,990.61x = 643,417,461.33
  5. Step 5: Solve for x
    x = 643,417,461.33/27,990.61
  6. Step 6: Final answer
    x = 22,986.91

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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.