Home / 30,153.31-45,234.08-10,426.57

Finding the Fourth Proportional to 30,153.31, 45,234.08 and 10,426.57

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Solution

The fourth proportional to 30,153.31, 45,234.08 and 10,426.57 is: 15,641.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,153.31 : 45,234.08 = 10,426.57 : x
  2. Step 2: Convert to fraction form
    30,153.31/45,234.08 = 10,426.57/x
  3. Step 3: Cross multiply
    30,153.31x = 45,234.08 × 10,426.57
  4. Step 4: Simplify right side
    30,153.31x = 471,636,301.51
  5. Step 5: Solve for x
    x = 471,636,301.51/30,153.31
  6. Step 6: Final answer
    x = 15,641.28

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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.