Home / 39,335.02-54,282.56-21,429.63

Finding the Fourth Proportional to 39,335.02, 54,282.56 and 21,429.63

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Solution

The fourth proportional to 39,335.02, 54,282.56 and 21,429.63 is: 29,573.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,335.02 : 54,282.56 = 21,429.63 : x
  2. Step 2: Convert to fraction form
    39,335.02/54,282.56 = 21,429.63/x
  3. Step 3: Cross multiply
    39,335.02x = 54,282.56 × 21,429.63
  4. Step 4: Simplify right side
    39,335.02x = 1,163,255,069.10
  5. Step 5: Solve for x
    x = 1,163,255,069.10/39,335.02
  6. Step 6: Final answer
    x = 29,573.02

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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.