Home / 26,685.68-36,783.68-21,011.44

Finding the Fourth Proportional to 26,685.68, 36,783.68 and 21,011.44

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Solution

The fourth proportional to 26,685.68, 36,783.68 and 21,011.44 is: 28,962.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,685.68 : 36,783.68 = 21,011.44 : x
  2. Step 2: Convert to fraction form
    26,685.68/36,783.68 = 21,011.44/x
  3. Step 3: Cross multiply
    26,685.68x = 36,783.68 × 21,011.44
  4. Step 4: Simplify right side
    26,685.68x = 772,878,085.30
  5. Step 5: Solve for x
    x = 772,878,085.30/26,685.68
  6. Step 6: Final answer
    x = 28,962.28

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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.