Home / 30,762.84-42,452.75-16,615.70

Finding the Fourth Proportional to 30,762.84, 42,452.75 and 16,615.70

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Solution

The fourth proportional to 30,762.84, 42,452.75 and 16,615.70 is: 22,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,762.84 : 42,452.75 = 16,615.70 : x
  2. Step 2: Convert to fraction form
    30,762.84/42,452.75 = 16,615.70/x
  3. Step 3: Cross multiply
    30,762.84x = 42,452.75 × 16,615.70
  4. Step 4: Simplify right side
    30,762.84x = 705,381,862.83
  5. Step 5: Solve for x
    x = 705,381,862.83/30,762.84
  6. Step 6: Final answer
    x = 22,929.67

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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.