Home / 21,124.09-31,681.54-6,329.04

Finding the Fourth Proportional to 21,124.09, 31,681.54 and 6,329.04

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Solution

The fourth proportional to 21,124.09, 31,681.54 and 6,329.04 is: 9,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.09 : 31,681.54 = 6,329.04 : x
  2. Step 2: Convert to fraction form
    21,124.09/31,681.54 = 6,329.04/x
  3. Step 3: Cross multiply
    21,124.09x = 31,681.54 × 6,329.04
  4. Step 4: Simplify right side
    21,124.09x = 200,513,733.92
  5. Step 5: Solve for x
    x = 200,513,733.92/21,124.09
  6. Step 6: Final answer
    x = 9,492.18

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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.