Home / 27,807.71-38,374.76-15,061.05

Finding the Fourth Proportional to 27,807.71, 38,374.76 and 15,061.05

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Solution

The fourth proportional to 27,807.71, 38,374.76 and 15,061.05 is: 20,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.71 : 38,374.76 = 15,061.05 : x
  2. Step 2: Convert to fraction form
    27,807.71/38,374.76 = 15,061.05/x
  3. Step 3: Cross multiply
    27,807.71x = 38,374.76 × 15,061.05
  4. Step 4: Simplify right side
    27,807.71x = 577,964,103.79
  5. Step 5: Solve for x
    x = 577,964,103.79/27,807.71
  6. Step 6: Final answer
    x = 20,784.32

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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.