Home / 30,476.99-42,062.73-18,538.02

Finding the Fourth Proportional to 30,476.99, 42,062.73 and 18,538.02

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Solution

The fourth proportional to 30,476.99, 42,062.73 and 18,538.02 is: 25,585.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.99 : 42,062.73 = 18,538.02 : x
  2. Step 2: Convert to fraction form
    30,476.99/42,062.73 = 18,538.02/x
  3. Step 3: Cross multiply
    30,476.99x = 42,062.73 × 18,538.02
  4. Step 4: Simplify right side
    30,476.99x = 779,759,729.99
  5. Step 5: Solve for x
    x = 779,759,729.99/30,476.99
  6. Step 6: Final answer
    x = 25,585.19

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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.