Home / 30,981.46-46,475.56-9,916.54

Finding the Fourth Proportional to 30,981.46, 46,475.56 and 9,916.54

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Solution

The fourth proportional to 30,981.46, 46,475.56 and 9,916.54 is: 14,875.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.46 : 46,475.56 = 9,916.54 : x
  2. Step 2: Convert to fraction form
    30,981.46/46,475.56 = 9,916.54/x
  3. Step 3: Cross multiply
    30,981.46x = 46,475.56 × 9,916.54
  4. Step 4: Simplify right side
    30,981.46x = 460,876,749.76
  5. Step 5: Solve for x
    x = 460,876,749.76/30,981.46
  6. Step 6: Final answer
    x = 14,875.89

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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.