Home / 29,208.76-40,266.14-20,810.68

Finding the Fourth Proportional to 29,208.76, 40,266.14 and 20,810.68

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Solution

The fourth proportional to 29,208.76, 40,266.14 and 20,810.68 is: 28,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,208.76 : 40,266.14 = 20,810.68 : x
  2. Step 2: Convert to fraction form
    29,208.76/40,266.14 = 20,810.68/x
  3. Step 3: Cross multiply
    29,208.76x = 40,266.14 × 20,810.68
  4. Step 4: Simplify right side
    29,208.76x = 837,965,754.38
  5. Step 5: Solve for x
    x = 837,965,754.38/29,208.76
  6. Step 6: Final answer
    x = 28,688.85

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Double scale
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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.