Home / 30,610.90-45,916.27-10,890.23

Finding the Fourth Proportional to 30,610.90, 45,916.27 and 10,890.23

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Solution

The fourth proportional to 30,610.90, 45,916.27 and 10,890.23 is: 16,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,610.90 : 45,916.27 = 10,890.23 : x
  2. Step 2: Convert to fraction form
    30,610.90/45,916.27 = 10,890.23/x
  3. Step 3: Cross multiply
    30,610.90x = 45,916.27 × 10,890.23
  4. Step 4: Simplify right side
    30,610.90x = 500,038,741.04
  5. Step 5: Solve for x
    x = 500,038,741.04/30,610.90
  6. Step 6: Final answer
    x = 16,335.32

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Double scale
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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.