Home / 30,916.54-46,343.64-12,189.32

Finding the Fourth Proportional to 30,916.54, 46,343.64 and 12,189.32

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Solution

The fourth proportional to 30,916.54, 46,343.64 and 12,189.32 is: 18,271.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,916.54 : 46,343.64 = 12,189.32 : x
  2. Step 2: Convert to fraction form
    30,916.54/46,343.64 = 12,189.32/x
  3. Step 3: Cross multiply
    30,916.54x = 46,343.64 × 12,189.32
  4. Step 4: Simplify right side
    30,916.54x = 564,897,457.92
  5. Step 5: Solve for x
    x = 564,897,457.92/30,916.54
  6. Step 6: Final answer
    x = 18,271.69

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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.