Home / 39,335.10-54,282.33-21,430.26

Finding the Fourth Proportional to 39,335.10, 54,282.33 and 21,430.26

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Solution

The fourth proportional to 39,335.10, 54,282.33 and 21,430.26 is: 29,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,335.10 : 54,282.33 = 21,430.26 : x
  2. Step 2: Convert to fraction form
    39,335.10/54,282.33 = 21,430.26/x
  3. Step 3: Cross multiply
    39,335.10x = 54,282.33 × 21,430.26
  4. Step 4: Simplify right side
    39,335.10x = 1,163,284,445.31
  5. Step 5: Solve for x
    x = 1,163,284,445.31/39,335.10
  6. Step 6: Final answer
    x = 29,573.70

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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.