Home / 30,886.06-42,621.66-17,457.02

Finding the Fourth Proportional to 30,886.06, 42,621.66 and 17,457.02

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Solution

The fourth proportional to 30,886.06, 42,621.66 and 17,457.02 is: 24,090.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,886.06 : 42,621.66 = 17,457.02 : x
  2. Step 2: Convert to fraction form
    30,886.06/42,621.66 = 17,457.02/x
  3. Step 3: Cross multiply
    30,886.06x = 42,621.66 × 17,457.02
  4. Step 4: Simplify right side
    30,886.06x = 744,047,171.05
  5. Step 5: Solve for x
    x = 744,047,171.05/30,886.06
  6. Step 6: Final answer
    x = 24,090.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.