Home / 31,475.19-47,205.53-8,985.45

Finding the Fourth Proportional to 31,475.19, 47,205.53 and 8,985.45

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Solution

The fourth proportional to 31,475.19, 47,205.53 and 8,985.45 is: 13,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.19 : 47,205.53 = 8,985.45 : x
  2. Step 2: Convert to fraction form
    31,475.19/47,205.53 = 8,985.45/x
  3. Step 3: Cross multiply
    31,475.19x = 47,205.53 × 8,985.45
  4. Step 4: Simplify right side
    31,475.19x = 424,162,884.61
  5. Step 5: Solve for x
    x = 424,162,884.61/31,475.19
  6. Step 6: Final answer
    x = 13,476.10

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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.