Home / 34,631.16-47,806.98-20,289

Finding the Fourth Proportional to 34,631.16, 47,806.98 and 20,289

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Solution

The fourth proportional to 34,631.16, 47,806.98 and 20,289 is: 28,008.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,631.16 : 47,806.98 = 20,289 : x
  2. Step 2: Convert to fraction form
    34,631.16/47,806.98 = 20,289/x
  3. Step 3: Cross multiply
    34,631.16x = 47,806.98 × 20,289
  4. Step 4: Simplify right side
    34,631.16x = 969,955,817.22
  5. Step 5: Solve for x
    x = 969,955,817.22/34,631.16
  6. Step 6: Final answer
    x = 28,008.18

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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.