Home / 26,913.60-40,370.40-21,075.20

Finding the Fourth Proportional to 26,913.60, 40,370.40 and 21,075.20

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Solution

The fourth proportional to 26,913.60, 40,370.40 and 21,075.20 is: 31,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,913.60 : 40,370.40 = 21,075.20 : x
  2. Step 2: Convert to fraction form
    26,913.60/40,370.40 = 21,075.20/x
  3. Step 3: Cross multiply
    26,913.60x = 40,370.40 × 21,075.20
  4. Step 4: Simplify right side
    26,913.60x = 850,814,254.08
  5. Step 5: Solve for x
    x = 850,814,254.08/26,913.60
  6. Step 6: Final answer
    x = 31,612.80

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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.