Home / 39,069.60-53,916.18-21,164.55

Finding the Fourth Proportional to 39,069.60, 53,916.18 and 21,164.55

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Solution

The fourth proportional to 39,069.60, 53,916.18 and 21,164.55 is: 29,207.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,069.60 : 53,916.18 = 21,164.55 : x
  2. Step 2: Convert to fraction form
    39,069.60/53,916.18 = 21,164.55/x
  3. Step 3: Cross multiply
    39,069.60x = 53,916.18 × 21,164.55
  4. Step 4: Simplify right side
    39,069.60x = 1,141,111,687.42
  5. Step 5: Solve for x
    x = 1,141,111,687.42/39,069.60
  6. Step 6: Final answer
    x = 29,207.15

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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.