Home / 40,848.96-61,280.64-21,122.16

Finding the Fourth Proportional to 40,848.96, 61,280.64 and 21,122.16

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Solution

The fourth proportional to 40,848.96, 61,280.64 and 21,122.16 is: 31,686.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,848.96 : 61,280.64 = 21,122.16 : x
  2. Step 2: Convert to fraction form
    40,848.96/61,280.64 = 21,122.16/x
  3. Step 3: Cross multiply
    40,848.96x = 61,280.64 × 21,122.16
  4. Step 4: Simplify right side
    40,848.96x = 1,294,379,482.98
  5. Step 5: Solve for x
    x = 1,294,379,482.98/40,848.96
  6. Step 6: Final answer
    x = 31,686.96

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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.