Home / 30,987.18-42,762.18-17,560.98

Finding the Fourth Proportional to 30,987.18, 42,762.18 and 17,560.98

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Solution

The fourth proportional to 30,987.18, 42,762.18 and 17,560.98 is: 24,234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987.18 : 42,762.18 = 17,560.98 : x
  2. Step 2: Convert to fraction form
    30,987.18/42,762.18 = 17,560.98/x
  3. Step 3: Cross multiply
    30,987.18x = 42,762.18 × 17,560.98
  4. Step 4: Simplify right side
    30,987.18x = 750,945,787.74
  5. Step 5: Solve for x
    x = 750,945,787.74/30,987.18
  6. Step 6: Final answer
    x = 24,234.08

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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.