Home / 39,453.08-54,445.56-21,547.76

Finding the Fourth Proportional to 39,453.08, 54,445.56 and 21,547.76

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Solution

The fourth proportional to 39,453.08, 54,445.56 and 21,547.76 is: 29,736.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,453.08 : 54,445.56 = 21,547.76 : x
  2. Step 2: Convert to fraction form
    39,453.08/54,445.56 = 21,547.76/x
  3. Step 3: Cross multiply
    39,453.08x = 54,445.56 × 21,547.76
  4. Step 4: Simplify right side
    39,453.08x = 1,173,179,915.26
  5. Step 5: Solve for x
    x = 1,173,179,915.26/39,453.08
  6. Step 6: Final answer
    x = 29,736.08

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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.