Home / 27,516.72-37,971-15,577.32

Finding the Fourth Proportional to 27,516.72, 37,971 and 15,577.32

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Solution

The fourth proportional to 27,516.72, 37,971 and 15,577.32 is: 21,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,516.72 : 37,971 = 15,577.32 : x
  2. Step 2: Convert to fraction form
    27,516.72/37,971 = 15,577.32/x
  3. Step 3: Cross multiply
    27,516.72x = 37,971 × 15,577.32
  4. Step 4: Simplify right side
    27,516.72x = 591,486,417.72
  5. Step 5: Solve for x
    x = 591,486,417.72/27,516.72
  6. Step 6: Final answer
    x = 21,495.53

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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.