Home / 27,688.41-38,210.82-15,753.45

Finding the Fourth Proportional to 27,688.41, 38,210.82 and 15,753.45

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Solution

The fourth proportional to 27,688.41, 38,210.82 and 15,753.45 is: 21,740.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,688.41 : 38,210.82 = 15,753.45 : x
  2. Step 2: Convert to fraction form
    27,688.41/38,210.82 = 15,753.45/x
  3. Step 3: Cross multiply
    27,688.41x = 38,210.82 × 15,753.45
  4. Step 4: Simplify right side
    27,688.41x = 601,952,242.33
  5. Step 5: Solve for x
    x = 601,952,242.33/27,688.41
  6. Step 6: Final answer
    x = 21,740.22

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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.