Home / 25,720.53-38,580.52-19,518.63

Finding the Fourth Proportional to 25,720.53, 38,580.52 and 19,518.63

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Solution

The fourth proportional to 25,720.53, 38,580.52 and 19,518.63 is: 29,277.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,720.53 : 38,580.52 = 19,518.63 : x
  2. Step 2: Convert to fraction form
    25,720.53/38,580.52 = 19,518.63/x
  3. Step 3: Cross multiply
    25,720.53x = 38,580.52 × 19,518.63
  4. Step 4: Simplify right side
    25,720.53x = 753,038,895.09
  5. Step 5: Solve for x
    x = 753,038,895.09/25,720.53
  6. Step 6: Final answer
    x = 29,277.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.