Home / 19,883.17-27,438.76-10,931.25

Finding the Fourth Proportional to 19,883.17, 27,438.76 and 10,931.25

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Solution

The fourth proportional to 19,883.17, 27,438.76 and 10,931.25 is: 15,085.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,883.17 : 27,438.76 = 10,931.25 : x
  2. Step 2: Convert to fraction form
    19,883.17/27,438.76 = 10,931.25/x
  3. Step 3: Cross multiply
    19,883.17x = 27,438.76 × 10,931.25
  4. Step 4: Simplify right side
    19,883.17x = 299,939,945.25
  5. Step 5: Solve for x
    x = 299,939,945.25/19,883.17
  6. Step 6: Final answer
    x = 15,085.12

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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.