Home / 20,705.16-31,058.70-5,916.18

Finding the Fourth Proportional to 20,705.16, 31,058.70 and 5,916.18

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Solution

The fourth proportional to 20,705.16, 31,058.70 and 5,916.18 is: 8,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.16 : 31,058.70 = 5,916.18 : x
  2. Step 2: Convert to fraction form
    20,705.16/31,058.70 = 5,916.18/x
  3. Step 3: Cross multiply
    20,705.16x = 31,058.70 × 5,916.18
  4. Step 4: Simplify right side
    20,705.16x = 183,748,859.77
  5. Step 5: Solve for x
    x = 183,748,859.77/20,705.16
  6. Step 6: Final answer
    x = 8,874.54

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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.