Home / 29,124.11-40,137.98-21,152.49

Finding the Fourth Proportional to 29,124.11, 40,137.98 and 21,152.49

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Solution

The fourth proportional to 29,124.11, 40,137.98 and 21,152.49 is: 29,151.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,124.11 : 40,137.98 = 21,152.49 : x
  2. Step 2: Convert to fraction form
    29,124.11/40,137.98 = 21,152.49/x
  3. Step 3: Cross multiply
    29,124.11x = 40,137.98 × 21,152.49
  4. Step 4: Simplify right side
    29,124.11x = 849,018,114.81
  5. Step 5: Solve for x
    x = 849,018,114.81/29,124.11
  6. Step 6: Final answer
    x = 29,151.73

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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.