Home / 27,486.51-37,931.16-15,549.75

Finding the Fourth Proportional to 27,486.51, 37,931.16 and 15,549.75

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Solution

The fourth proportional to 27,486.51, 37,931.16 and 15,549.75 is: 21,458.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,486.51 : 37,931.16 = 15,549.75 : x
  2. Step 2: Convert to fraction form
    27,486.51/37,931.16 = 15,549.75/x
  3. Step 3: Cross multiply
    27,486.51x = 37,931.16 × 15,549.75
  4. Step 4: Simplify right side
    27,486.51x = 589,820,055.21
  5. Step 5: Solve for x
    x = 589,820,055.21/27,486.51
  6. Step 6: Final answer
    x = 21,458.53

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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.