Home / 42,939.04-64,433.76-16,642.40

Finding the Fourth Proportional to 42,939.04, 64,433.76 and 16,642.40

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Solution

The fourth proportional to 42,939.04, 64,433.76 and 16,642.40 is: 24,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,939.04 : 64,433.76 = 16,642.40 : x
  2. Step 2: Convert to fraction form
    42,939.04/64,433.76 = 16,642.40/x
  3. Step 3: Cross multiply
    42,939.04x = 64,433.76 × 16,642.40
  4. Step 4: Simplify right side
    42,939.04x = 1,072,332,407.42
  5. Step 5: Solve for x
    x = 1,072,332,407.42/42,939.04
  6. Step 6: Final answer
    x = 24,973.37

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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.