Home / 30,180.16-45,253.80-10,457.08

Finding the Fourth Proportional to 30,180.16, 45,253.80 and 10,457.08

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Solution

The fourth proportional to 30,180.16, 45,253.80 and 10,457.08 is: 15,679.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,180.16 : 45,253.80 = 10,457.08 : x
  2. Step 2: Convert to fraction form
    30,180.16/45,253.80 = 10,457.08/x
  3. Step 3: Cross multiply
    30,180.16x = 45,253.80 × 10,457.08
  4. Step 4: Simplify right side
    30,180.16x = 473,222,606.90
  5. Step 5: Solve for x
    x = 473,222,606.90/30,180.16
  6. Step 6: Final answer
    x = 15,679.92

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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.