Home / 43,325.10-64,987.65-21,127.05

Finding the Fourth Proportional to 43,325.10, 64,987.65 and 21,127.05

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Solution

The fourth proportional to 43,325.10, 64,987.65 and 21,127.05 is: 31,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,325.10 : 64,987.65 = 21,127.05 : x
  2. Step 2: Convert to fraction form
    43,325.10/64,987.65 = 21,127.05/x
  3. Step 3: Cross multiply
    43,325.10x = 64,987.65 × 21,127.05
  4. Step 4: Simplify right side
    43,325.10x = 1,372,997,330.93
  5. Step 5: Solve for x
    x = 1,372,997,330.93/43,325.10
  6. Step 6: Final answer
    x = 31,690.58

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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.