Home / 21,140.04-31,715.58-6,348.60

Finding the Fourth Proportional to 21,140.04, 31,715.58 and 6,348.60

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Solution

The fourth proportional to 21,140.04, 31,715.58 and 6,348.60 is: 9,524.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,140.04 : 31,715.58 = 6,348.60 : x
  2. Step 2: Convert to fraction form
    21,140.04/31,715.58 = 6,348.60/x
  3. Step 3: Cross multiply
    21,140.04x = 31,715.58 × 6,348.60
  4. Step 4: Simplify right side
    21,140.04x = 201,349,531.19
  5. Step 5: Solve for x
    x = 201,349,531.19/21,140.04
  6. Step 6: Final answer
    x = 9,524.56

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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.