Home / 39,192.02-54,085.08-21,287.00

Finding the Fourth Proportional to 39,192.02, 54,085.08 and 21,287.00

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Solution

The fourth proportional to 39,192.02, 54,085.08 and 21,287.00 is: 29,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192.02 : 54,085.08 = 21,287.00 : x
  2. Step 2: Convert to fraction form
    39,192.02/54,085.08 = 21,287.00/x
  3. Step 3: Cross multiply
    39,192.02x = 54,085.08 × 21,287.00
  4. Step 4: Simplify right side
    39,192.02x = 1,151,309,313.00
  5. Step 5: Solve for x
    x = 1,151,309,313.00/39,192.02
  6. Step 6: Final answer
    x = 29,376.12

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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.