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Finding the Fourth Proportional to 26,990.50, 37,250.14 and 15,812.50

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Solution

The fourth proportional to 26,990.50, 37,250.14 and 15,812.50 is: 21,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,990.50 : 37,250.14 = 15,812.50 : x
  2. Step 2: Convert to fraction form
    26,990.50/37,250.14 = 15,812.50/x
  3. Step 3: Cross multiply
    26,990.50x = 37,250.14 × 15,812.50
  4. Step 4: Simplify right side
    26,990.50x = 589,017,838.75
  5. Step 5: Solve for x
    x = 589,017,838.75/26,990.50
  6. Step 6: Final answer
    x = 21,823.15

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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.