Home / 30,759.81-42,448.55-16,612.66

Finding the Fourth Proportional to 30,759.81, 42,448.55 and 16,612.66

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Solution

The fourth proportional to 30,759.81, 42,448.55 and 16,612.66 is: 22,925.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,759.81 : 42,448.55 = 16,612.66 : x
  2. Step 2: Convert to fraction form
    30,759.81/42,448.55 = 16,612.66/x
  3. Step 3: Cross multiply
    30,759.81x = 42,448.55 × 16,612.66
  4. Step 4: Simplify right side
    30,759.81x = 705,183,139.46
  5. Step 5: Solve for x
    x = 705,183,139.46/30,759.81
  6. Step 6: Final answer
    x = 22,925.47

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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.