Home / 31,547.76-47,321.64-10,771.26

Finding the Fourth Proportional to 31,547.76, 47,321.64 and 10,771.26

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Solution

The fourth proportional to 31,547.76, 47,321.64 and 10,771.26 is: 16,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,547.76 : 47,321.64 = 10,771.26 : x
  2. Step 2: Convert to fraction form
    31,547.76/47,321.64 = 10,771.26/x
  3. Step 3: Cross multiply
    31,547.76x = 47,321.64 × 10,771.26
  4. Step 4: Simplify right side
    31,547.76x = 509,713,688.07
  5. Step 5: Solve for x
    x = 509,713,688.07/31,547.76
  6. Step 6: Final answer
    x = 16,156.89

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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.