Home / 30,376.89-45,490.01-21,026.25

Finding the Fourth Proportional to 30,376.89, 45,490.01 and 21,026.25

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Solution

The fourth proportional to 30,376.89, 45,490.01 and 21,026.25 is: 31,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.89 : 45,490.01 = 21,026.25 : x
  2. Step 2: Convert to fraction form
    30,376.89/45,490.01 = 21,026.25/x
  3. Step 3: Cross multiply
    30,376.89x = 45,490.01 × 21,026.25
  4. Step 4: Simplify right side
    30,376.89x = 956,484,217.63
  5. Step 5: Solve for x
    x = 956,484,217.63/30,376.89
  6. Step 6: Final answer
    x = 31,487.23

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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.