Home / 37,618.68-56,430.72-12,658.62

Finding the Fourth Proportional to 37,618.68, 56,430.72 and 12,658.62

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Solution

The fourth proportional to 37,618.68, 56,430.72 and 12,658.62 is: 18,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,618.68 : 56,430.72 = 12,658.62 : x
  2. Step 2: Convert to fraction form
    37,618.68/56,430.72 = 12,658.62/x
  3. Step 3: Cross multiply
    37,618.68x = 56,430.72 × 12,658.62
  4. Step 4: Simplify right side
    37,618.68x = 714,335,040.81
  5. Step 5: Solve for x
    x = 714,335,040.81/37,618.68
  6. Step 6: Final answer
    x = 18,988.84

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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.