Home / 30,618.24-42,248.14-18,041.28

Finding the Fourth Proportional to 30,618.24, 42,248.14 and 18,041.28

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Solution

The fourth proportional to 30,618.24, 42,248.14 and 18,041.28 is: 24,894.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,618.24 : 42,248.14 = 18,041.28 : x
  2. Step 2: Convert to fraction form
    30,618.24/42,248.14 = 18,041.28/x
  3. Step 3: Cross multiply
    30,618.24x = 42,248.14 × 18,041.28
  4. Step 4: Simplify right side
    30,618.24x = 762,210,523.22
  5. Step 5: Solve for x
    x = 762,210,523.22/30,618.24
  6. Step 6: Final answer
    x = 24,894.00

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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.