Home / 28,547.30-42,817.17-12,961.34

Finding the Fourth Proportional to 28,547.30, 42,817.17 and 12,961.34

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Solution

The fourth proportional to 28,547.30, 42,817.17 and 12,961.34 is: 19,440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547.30 : 42,817.17 = 12,961.34 : x
  2. Step 2: Convert to fraction form
    28,547.30/42,817.17 = 12,961.34/x
  3. Step 3: Cross multiply
    28,547.30x = 42,817.17 × 12,961.34
  4. Step 4: Simplify right side
    28,547.30x = 554,967,898.21
  5. Step 5: Solve for x
    x = 554,967,898.21/28,547.30
  6. Step 6: Final answer
    x = 19,440.29

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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.