Home / 30,812.42-42,521.37-18,065.93

Finding the Fourth Proportional to 30,812.42, 42,521.37 and 18,065.93

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Solution

The fourth proportional to 30,812.42, 42,521.37 and 18,065.93 is: 24,931.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812.42 : 42,521.37 = 18,065.93 : x
  2. Step 2: Convert to fraction form
    30,812.42/42,521.37 = 18,065.93/x
  3. Step 3: Cross multiply
    30,812.42x = 42,521.37 × 18,065.93
  4. Step 4: Simplify right side
    30,812.42x = 768,187,881.32
  5. Step 5: Solve for x
    x = 768,187,881.32/30,812.42
  6. Step 6: Final answer
    x = 24,931.12

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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.