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Finding the Fourth Proportional to 26,603.60, 39,937.80 and 26,409.20

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Solution

The fourth proportional to 26,603.60, 39,937.80 and 26,409.20 is: 39,645.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,603.60 : 39,937.80 = 26,409.20 : x
  2. Step 2: Convert to fraction form
    26,603.60/39,937.80 = 26,409.20/x
  3. Step 3: Cross multiply
    26,603.60x = 39,937.80 × 26,409.20
  4. Step 4: Simplify right side
    26,603.60x = 1,054,725,347.76
  5. Step 5: Solve for x
    x = 1,054,725,347.76/26,603.60
  6. Step 6: Final answer
    x = 39,645.96

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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.