Home / 39,397.49-54,368.50-21,492.45

Finding the Fourth Proportional to 39,397.49, 54,368.50 and 21,492.45

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Solution

The fourth proportional to 39,397.49, 54,368.50 and 21,492.45 is: 29,659.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,397.49 : 54,368.50 = 21,492.45 : x
  2. Step 2: Convert to fraction form
    39,397.49/54,368.50 = 21,492.45/x
  3. Step 3: Cross multiply
    39,397.49x = 54,368.50 × 21,492.45
  4. Step 4: Simplify right side
    39,397.49x = 1,168,512,101.48
  5. Step 5: Solve for x
    x = 1,168,512,101.48/39,397.49
  6. Step 6: Final answer
    x = 29,659.56

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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.