Home / 31,938.40-47,914.80-9,752.80

Finding the Fourth Proportional to 31,938.40, 47,914.80 and 9,752.80

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Solution

The fourth proportional to 31,938.40, 47,914.80 and 9,752.80 is: 14,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938.40 : 47,914.80 = 9,752.80 : x
  2. Step 2: Convert to fraction form
    31,938.40/47,914.80 = 9,752.80/x
  3. Step 3: Cross multiply
    31,938.40x = 47,914.80 × 9,752.80
  4. Step 4: Simplify right side
    31,938.40x = 467,303,461.44
  5. Step 5: Solve for x
    x = 467,303,461.44/31,938.40
  6. Step 6: Final answer
    x = 14,631.40

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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.