Home / 30,607.68-42,238.08-18,030.24

Finding the Fourth Proportional to 30,607.68, 42,238.08 and 18,030.24

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Solution

The fourth proportional to 30,607.68, 42,238.08 and 18,030.24 is: 24,881.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,607.68 : 42,238.08 = 18,030.24 : x
  2. Step 2: Convert to fraction form
    30,607.68/42,238.08 = 18,030.24/x
  3. Step 3: Cross multiply
    30,607.68x = 42,238.08 × 18,030.24
  4. Step 4: Simplify right side
    30,607.68x = 761,562,719.54
  5. Step 5: Solve for x
    x = 761,562,719.54/30,607.68
  6. Step 6: Final answer
    x = 24,881.43

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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.