Home / 39,059.20-53,901-21,154.08

Finding the Fourth Proportional to 39,059.20, 53,901 and 21,154.08

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Solution

The fourth proportional to 39,059.20, 53,901 and 21,154.08 is: 29,192.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,059.20 : 53,901 = 21,154.08 : x
  2. Step 2: Convert to fraction form
    39,059.20/53,901 = 21,154.08/x
  3. Step 3: Cross multiply
    39,059.20x = 53,901 × 21,154.08
  4. Step 4: Simplify right side
    39,059.20x = 1,140,226,066.08
  5. Step 5: Solve for x
    x = 1,140,226,066.08/39,059.20
  6. Step 6: Final answer
    x = 29,192.25

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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.