Home / 30,981.20-46,457.60-9,917.16

Finding the Fourth Proportional to 30,981.20, 46,457.60 and 9,917.16

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Solution

The fourth proportional to 30,981.20, 46,457.60 and 9,917.16 is: 14,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.20 : 46,457.60 = 9,917.16 : x
  2. Step 2: Convert to fraction form
    30,981.20/46,457.60 = 9,917.16/x
  3. Step 3: Cross multiply
    30,981.20x = 46,457.60 × 9,917.16
  4. Step 4: Simplify right side
    30,981.20x = 460,727,452.42
  5. Step 5: Solve for x
    x = 460,727,452.42/30,981.20
  6. Step 6: Final answer
    x = 14,871.19

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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.