Home / 31,569.40-47,315.70-14,020.60

Finding the Fourth Proportional to 31,569.40, 47,315.70 and 14,020.60

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Solution

The fourth proportional to 31,569.40, 47,315.70 and 14,020.60 is: 21,013.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,569.40 : 47,315.70 = 14,020.60 : x
  2. Step 2: Convert to fraction form
    31,569.40/47,315.70 = 14,020.60/x
  3. Step 3: Cross multiply
    31,569.40x = 47,315.70 × 14,020.60
  4. Step 4: Simplify right side
    31,569.40x = 663,394,503.42
  5. Step 5: Solve for x
    x = 663,394,503.42/31,569.40
  6. Step 6: Final answer
    x = 21,013.85

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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.