Home / 20,208.15-30,312.29-7,060.53

Finding the Fourth Proportional to 20,208.15, 30,312.29 and 7,060.53

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Solution

The fourth proportional to 20,208.15, 30,312.29 and 7,060.53 is: 10,590.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.15 : 30,312.29 = 7,060.53 : x
  2. Step 2: Convert to fraction form
    20,208.15/30,312.29 = 7,060.53/x
  3. Step 3: Cross multiply
    20,208.15x = 30,312.29 × 7,060.53
  4. Step 4: Simplify right side
    20,208.15x = 214,020,832.91
  5. Step 5: Solve for x
    x = 214,020,832.91/20,208.15
  6. Step 6: Final answer
    x = 10,590.82

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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.