Home / 27,291.19-37,661.28-15,354.40

Finding the Fourth Proportional to 27,291.19, 37,661.28 and 15,354.40

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Solution

The fourth proportional to 27,291.19, 37,661.28 and 15,354.40 is: 21,188.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,291.19 : 37,661.28 = 15,354.40 : x
  2. Step 2: Convert to fraction form
    27,291.19/37,661.28 = 15,354.40/x
  3. Step 3: Cross multiply
    27,291.19x = 37,661.28 × 15,354.40
  4. Step 4: Simplify right side
    27,291.19x = 578,266,357.63
  5. Step 5: Solve for x
    x = 578,266,357.63/27,291.19
  6. Step 6: Final answer
    x = 21,188.76

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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.