Home / 30,377.16-45,567.12-9,315.66

Finding the Fourth Proportional to 30,377.16, 45,567.12 and 9,315.66

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Solution

The fourth proportional to 30,377.16, 45,567.12 and 9,315.66 is: 13,973.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,377.16 : 45,567.12 = 9,315.66 : x
  2. Step 2: Convert to fraction form
    30,377.16/45,567.12 = 9,315.66/x
  3. Step 3: Cross multiply
    30,377.16x = 45,567.12 × 9,315.66
  4. Step 4: Simplify right side
    30,377.16x = 424,487,797.10
  5. Step 5: Solve for x
    x = 424,487,797.10/30,377.16
  6. Step 6: Final answer
    x = 13,973.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.