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Finding the Fourth Proportional to 34,868.88, 48,119.10 and 18,953.40

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Solution

The fourth proportional to 34,868.88, 48,119.10 and 18,953.40 is: 26,155.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,868.88 : 48,119.10 = 18,953.40 : x
  2. Step 2: Convert to fraction form
    34,868.88/48,119.10 = 18,953.40/x
  3. Step 3: Cross multiply
    34,868.88x = 48,119.10 × 18,953.40
  4. Step 4: Simplify right side
    34,868.88x = 912,020,549.94
  5. Step 5: Solve for x
    x = 912,020,549.94/34,868.88
  6. Step 6: Final answer
    x = 26,155.72

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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.