Home / 39,512.49-54,547.07-30,539.72

Finding the Fourth Proportional to 39,512.49, 54,547.07 and 30,539.72

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Solution

The fourth proportional to 39,512.49, 54,547.07 and 30,539.72 is: 42,160.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,512.49 : 54,547.07 = 30,539.72 : x
  2. Step 2: Convert to fraction form
    39,512.49/54,547.07 = 30,539.72/x
  3. Step 3: Cross multiply
    39,512.49x = 54,547.07 × 30,539.72
  4. Step 4: Simplify right side
    39,512.49x = 1,665,851,819.19
  5. Step 5: Solve for x
    x = 1,665,851,819.19/39,512.49
  6. Step 6: Final answer
    x = 42,160.13

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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.