Home / 27,951.14-38,557.71-21,225.62

Finding the Fourth Proportional to 27,951.14, 38,557.71 and 21,225.62

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Solution

The fourth proportional to 27,951.14, 38,557.71 and 21,225.62 is: 29,280.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,951.14 : 38,557.71 = 21,225.62 : x
  2. Step 2: Convert to fraction form
    27,951.14/38,557.71 = 21,225.62/x
  3. Step 3: Cross multiply
    27,951.14x = 38,557.71 × 21,225.62
  4. Step 4: Simplify right side
    27,951.14x = 818,411,300.53
  5. Step 5: Solve for x
    x = 818,411,300.53/27,951.14
  6. Step 6: Final answer
    x = 29,280.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.