Home / 34,868.23-48,130.50-20,720.91

Finding the Fourth Proportional to 34,868.23, 48,130.50 and 20,720.91

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Solution

The fourth proportional to 34,868.23, 48,130.50 and 20,720.91 is: 28,602.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,868.23 : 48,130.50 = 20,720.91 : x
  2. Step 2: Convert to fraction form
    34,868.23/48,130.50 = 20,720.91/x
  3. Step 3: Cross multiply
    34,868.23x = 48,130.50 × 20,720.91
  4. Step 4: Simplify right side
    34,868.23x = 997,307,578.27
  5. Step 5: Solve for x
    x = 997,307,578.27/34,868.23
  6. Step 6: Final answer
    x = 28,602.18

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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.