Home / 25,294.68-34,915.86-20,570.76

Finding the Fourth Proportional to 25,294.68, 34,915.86 and 20,570.76

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Solution

The fourth proportional to 25,294.68, 34,915.86 and 20,570.76 is: 28,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,294.68 : 34,915.86 = 20,570.76 : x
  2. Step 2: Convert to fraction form
    25,294.68/34,915.86 = 20,570.76/x
  3. Step 3: Cross multiply
    25,294.68x = 34,915.86 × 20,570.76
  4. Step 4: Simplify right side
    25,294.68x = 718,245,776.25
  5. Step 5: Solve for x
    x = 718,245,776.25/25,294.68
  6. Step 6: Final answer
    x = 28,395.13

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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.