Home / 26,130.60-36,056.95-21,636.32

Finding the Fourth Proportional to 26,130.60, 36,056.95 and 21,636.32

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Solution

The fourth proportional to 26,130.60, 36,056.95 and 21,636.32 is: 29,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,130.60 : 36,056.95 = 21,636.32 : x
  2. Step 2: Convert to fraction form
    26,130.60/36,056.95 = 21,636.32/x
  3. Step 3: Cross multiply
    26,130.60x = 36,056.95 × 21,636.32
  4. Step 4: Simplify right side
    26,130.60x = 780,139,474.05
  5. Step 5: Solve for x
    x = 780,139,474.05/26,130.60
  6. Step 6: Final answer
    x = 29,855.40

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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.