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Finding the Fourth Proportional to 25,646.70, 38,494.35 and 21,953.10

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Solution

The fourth proportional to 25,646.70, 38,494.35 and 21,953.10 is: 32,950.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,646.70 : 38,494.35 = 21,953.10 : x
  2. Step 2: Convert to fraction form
    25,646.70/38,494.35 = 21,953.10/x
  3. Step 3: Cross multiply
    25,646.70x = 38,494.35 × 21,953.10
  4. Step 4: Simplify right side
    25,646.70x = 845,070,314.99
  5. Step 5: Solve for x
    x = 845,070,314.99/25,646.70
  6. Step 6: Final answer
    x = 32,950.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.