Home / 39,335.04-54,282.39-21,430.08

Finding the Fourth Proportional to 39,335.04, 54,282.39 and 21,430.08

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Solution

The fourth proportional to 39,335.04, 54,282.39 and 21,430.08 is: 29,573.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,335.04 : 54,282.39 = 21,430.08 : x
  2. Step 2: Convert to fraction form
    39,335.04/54,282.39 = 21,430.08/x
  3. Step 3: Cross multiply
    39,335.04x = 54,282.39 × 21,430.08
  4. Step 4: Simplify right side
    39,335.04x = 1,163,275,960.29
  5. Step 5: Solve for x
    x = 1,163,275,960.29/39,335.04
  6. Step 6: Final answer
    x = 29,573.53

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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.