Home / 39,435.95-54,422.90-21,532.32

Finding the Fourth Proportional to 39,435.95, 54,422.90 and 21,532.32

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Solution

The fourth proportional to 39,435.95, 54,422.90 and 21,532.32 is: 29,715.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,435.95 : 54,422.90 = 21,532.32 : x
  2. Step 2: Convert to fraction form
    39,435.95/54,422.90 = 21,532.32/x
  3. Step 3: Cross multiply
    39,435.95x = 54,422.90 × 21,532.32
  4. Step 4: Simplify right side
    39,435.95x = 1,171,851,298.13
  5. Step 5: Solve for x
    x = 1,171,851,298.13/39,435.95
  6. Step 6: Final answer
    x = 29,715.31

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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.