Home / 39,160.24-54,041.52-21,255.40

Finding the Fourth Proportional to 39,160.24, 54,041.52 and 21,255.40

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Solution

The fourth proportional to 39,160.24, 54,041.52 and 21,255.40 is: 29,332.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,160.24 : 54,041.52 = 21,255.40 : x
  2. Step 2: Convert to fraction form
    39,160.24/54,041.52 = 21,255.40/x
  3. Step 3: Cross multiply
    39,160.24x = 54,041.52 × 21,255.40
  4. Step 4: Simplify right side
    39,160.24x = 1,148,674,124.21
  5. Step 5: Solve for x
    x = 1,148,674,124.21/39,160.24
  6. Step 6: Final answer
    x = 29,332.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.