Home / 31,124.84-42,952.40-16,977.98

Finding the Fourth Proportional to 31,124.84, 42,952.40 and 16,977.98

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Solution

The fourth proportional to 31,124.84, 42,952.40 and 16,977.98 is: 23,429.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,124.84 : 42,952.40 = 16,977.98 : x
  2. Step 2: Convert to fraction form
    31,124.84/42,952.40 = 16,977.98/x
  3. Step 3: Cross multiply
    31,124.84x = 42,952.40 × 16,977.98
  4. Step 4: Simplify right side
    31,124.84x = 729,244,988.15
  5. Step 5: Solve for x
    x = 729,244,988.15/31,124.84
  6. Step 6: Final answer
    x = 23,429.68

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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.