Home / 27,945.04-38,564.16-15,369.76

Finding the Fourth Proportional to 27,945.04, 38,564.16 and 15,369.76

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Solution

The fourth proportional to 27,945.04, 38,564.16 and 15,369.76 is: 21,210.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.04 : 38,564.16 = 15,369.76 : x
  2. Step 2: Convert to fraction form
    27,945.04/38,564.16 = 15,369.76/x
  3. Step 3: Cross multiply
    27,945.04x = 38,564.16 × 15,369.76
  4. Step 4: Simplify right side
    27,945.04x = 592,721,883.80
  5. Step 5: Solve for x
    x = 592,721,883.80/27,945.04
  6. Step 6: Final answer
    x = 21,210.27

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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.