Home / 43,140.24-64,622.88-22,320

Finding the Fourth Proportional to 43,140.24, 64,622.88 and 22,320

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Solution

The fourth proportional to 43,140.24, 64,622.88 and 22,320 is: 33,434.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.24 : 64,622.88 = 22,320 : x
  2. Step 2: Convert to fraction form
    43,140.24/64,622.88 = 22,320/x
  3. Step 3: Cross multiply
    43,140.24x = 64,622.88 × 22,320
  4. Step 4: Simplify right side
    43,140.24x = 1,442,382,681.60
  5. Step 5: Solve for x
    x = 1,442,382,681.60/43,140.24
  6. Step 6: Final answer
    x = 33,434.74

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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.