Home / 30,765.21-46,155.02-9,988.71

Finding the Fourth Proportional to 30,765.21, 46,155.02 and 9,988.71

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Solution

The fourth proportional to 30,765.21, 46,155.02 and 9,988.71 is: 14,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,765.21 : 46,155.02 = 9,988.71 : x
  2. Step 2: Convert to fraction form
    30,765.21/46,155.02 = 9,988.71/x
  3. Step 3: Cross multiply
    30,765.21x = 46,155.02 × 9,988.71
  4. Step 4: Simplify right side
    30,765.21x = 461,029,059.88
  5. Step 5: Solve for x
    x = 461,029,059.88/30,765.21
  6. Step 6: Final answer
    x = 14,985.40

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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.