Home / 27,851.73-38,406.09-21,061.71

Finding the Fourth Proportional to 27,851.73, 38,406.09 and 21,061.71

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Solution

The fourth proportional to 27,851.73, 38,406.09 and 21,061.71 is: 29,043.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,851.73 : 38,406.09 = 21,061.71 : x
  2. Step 2: Convert to fraction form
    27,851.73/38,406.09 = 21,061.71/x
  3. Step 3: Cross multiply
    27,851.73x = 38,406.09 × 21,061.71
  4. Step 4: Simplify right side
    27,851.73x = 808,897,929.81
  5. Step 5: Solve for x
    x = 808,897,929.81/27,851.73
  6. Step 6: Final answer
    x = 29,043.00

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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.