Home / 30,547.36-42,151.08-17,117.56

Finding the Fourth Proportional to 30,547.36, 42,151.08 and 17,117.56

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Solution

The fourth proportional to 30,547.36, 42,151.08 and 17,117.56 is: 23,619.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,547.36 : 42,151.08 = 17,117.56 : x
  2. Step 2: Convert to fraction form
    30,547.36/42,151.08 = 17,117.56/x
  3. Step 3: Cross multiply
    30,547.36x = 42,151.08 × 17,117.56
  4. Step 4: Simplify right side
    30,547.36x = 721,523,640.96
  5. Step 5: Solve for x
    x = 721,523,640.96/30,547.36
  6. Step 6: Final answer
    x = 23,619.84

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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.