Home / 42,683.24-64,023.58-11,520.36

Finding the Fourth Proportional to 42,683.24, 64,023.58 and 11,520.36

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Solution

The fourth proportional to 42,683.24, 64,023.58 and 11,520.36 is: 17,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,683.24 : 64,023.58 = 11,520.36 : x
  2. Step 2: Convert to fraction form
    42,683.24/64,023.58 = 11,520.36/x
  3. Step 3: Cross multiply
    42,683.24x = 64,023.58 × 11,520.36
  4. Step 4: Simplify right side
    42,683.24x = 737,574,690.09
  5. Step 5: Solve for x
    x = 737,574,690.09/42,683.24
  6. Step 6: Final answer
    x = 17,280.19

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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.