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Finding the Fourth Proportional to 30,567.78, 45,842.19 and 14,762.99

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Solution

The fourth proportional to 30,567.78, 45,842.19 and 14,762.99 is: 22,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,567.78 : 45,842.19 = 14,762.99 : x
  2. Step 2: Convert to fraction form
    30,567.78/45,842.19 = 14,762.99/x
  3. Step 3: Cross multiply
    30,567.78x = 45,842.19 × 14,762.99
  4. Step 4: Simplify right side
    30,567.78x = 676,767,563.34
  5. Step 5: Solve for x
    x = 676,767,563.34/30,567.78
  6. Step 6: Final answer
    x = 22,139.90

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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.