Home / 20,445.84-30,648.24-13,058.64

Finding the Fourth Proportional to 20,445.84, 30,648.24 and 13,058.64

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Solution

The fourth proportional to 20,445.84, 30,648.24 and 13,058.64 is: 19,574.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.84 : 30,648.24 = 13,058.64 : x
  2. Step 2: Convert to fraction form
    20,445.84/30,648.24 = 13,058.64/x
  3. Step 3: Cross multiply
    20,445.84x = 30,648.24 × 13,058.64
  4. Step 4: Simplify right side
    20,445.84x = 400,224,332.79
  5. Step 5: Solve for x
    x = 400,224,332.79/20,445.84
  6. Step 6: Final answer
    x = 19,574.85

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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.