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Finding the Fourth Proportional to 29,897.64, 40,959.97 and 28,776.60

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Solution

The fourth proportional to 29,897.64, 40,959.97 and 28,776.60 is: 39,424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,897.64 : 40,959.97 = 28,776.60 : x
  2. Step 2: Convert to fraction form
    29,897.64/40,959.97 = 28,776.60/x
  3. Step 3: Cross multiply
    29,897.64x = 40,959.97 × 28,776.60
  4. Step 4: Simplify right side
    29,897.64x = 1,178,688,600.76
  5. Step 5: Solve for x
    x = 1,178,688,600.76/29,897.64
  6. Step 6: Final answer
    x = 39,424.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.