Home / 21,666.74-32,505.57-9,988.16

Finding the Fourth Proportional to 21,666.74, 32,505.57 and 9,988.16

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Solution

The fourth proportional to 21,666.74, 32,505.57 and 9,988.16 is: 14,984.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,666.74 : 32,505.57 = 9,988.16 : x
  2. Step 2: Convert to fraction form
    21,666.74/32,505.57 = 9,988.16/x
  3. Step 3: Cross multiply
    21,666.74x = 32,505.57 × 9,988.16
  4. Step 4: Simplify right side
    21,666.74x = 324,670,671.52
  5. Step 5: Solve for x
    x = 324,670,671.52/21,666.74
  6. Step 6: Final answer
    x = 14,984.75

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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.