Home / 31,597.70-47,423.82-12,888.06

Finding the Fourth Proportional to 31,597.70, 47,423.82 and 12,888.06

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Solution

The fourth proportional to 31,597.70, 47,423.82 and 12,888.06 is: 19,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,597.70 : 47,423.82 = 12,888.06 : x
  2. Step 2: Convert to fraction form
    31,597.70/47,423.82 = 12,888.06/x
  3. Step 3: Cross multiply
    31,597.70x = 47,423.82 × 12,888.06
  4. Step 4: Simplify right side
    31,597.70x = 611,201,037.59
  5. Step 5: Solve for x
    x = 611,201,037.59/31,597.70
  6. Step 6: Final answer
    x = 19,343.21

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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.