Home / 40,703.18-61,005.56-20,970.98

Finding the Fourth Proportional to 40,703.18, 61,005.56 and 20,970.98

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Solution

The fourth proportional to 40,703.18, 61,005.56 and 20,970.98 is: 31,431.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,703.18 : 61,005.56 = 20,970.98 : x
  2. Step 2: Convert to fraction form
    40,703.18/61,005.56 = 20,970.98/x
  3. Step 3: Cross multiply
    40,703.18x = 61,005.56 × 20,970.98
  4. Step 4: Simplify right side
    40,703.18x = 1,279,346,378.65
  5. Step 5: Solve for x
    x = 1,279,346,378.65/40,703.18
  6. Step 6: Final answer
    x = 31,431.12

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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.