Home / 26,929.45-40,395.93-21,988.45

Finding the Fourth Proportional to 26,929.45, 40,395.93 and 21,988.45

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Solution

The fourth proportional to 26,929.45, 40,395.93 and 21,988.45 is: 32,984.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,929.45 : 40,395.93 = 21,988.45 : x
  2. Step 2: Convert to fraction form
    26,929.45/40,395.93 = 21,988.45/x
  3. Step 3: Cross multiply
    26,929.45x = 40,395.93 × 21,988.45
  4. Step 4: Simplify right side
    26,929.45x = 888,243,887.01
  5. Step 5: Solve for x
    x = 888,243,887.01/26,929.45
  6. Step 6: Final answer
    x = 32,984.11

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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.