Home / 39,069.93-53,916.65-21,164.90

Finding the Fourth Proportional to 39,069.93, 53,916.65 and 21,164.90

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Solution

The fourth proportional to 39,069.93, 53,916.65 and 21,164.90 is: 29,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,069.93 : 53,916.65 = 21,164.90 : x
  2. Step 2: Convert to fraction form
    39,069.93/53,916.65 = 21,164.90/x
  3. Step 3: Cross multiply
    39,069.93x = 53,916.65 × 21,164.90
  4. Step 4: Simplify right side
    39,069.93x = 1,141,140,209.55
  5. Step 5: Solve for x
    x = 1,141,140,209.55/39,069.93
  6. Step 6: Final answer
    x = 29,207.63

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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.