Home / 31,916.34-47,881.40-9,729.12

Finding the Fourth Proportional to 31,916.34, 47,881.40 and 9,729.12

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Solution

The fourth proportional to 31,916.34, 47,881.40 and 9,729.12 is: 14,595.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,916.34 : 47,881.40 = 9,729.12 : x
  2. Step 2: Convert to fraction form
    31,916.34/47,881.40 = 9,729.12/x
  3. Step 3: Cross multiply
    31,916.34x = 47,881.40 × 9,729.12
  4. Step 4: Simplify right side
    31,916.34x = 465,843,886.37
  5. Step 5: Solve for x
    x = 465,843,886.37/31,916.34
  6. Step 6: Final answer
    x = 14,595.78

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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.