Home / 31,886.02-47,807.38-17,855.70

Finding the Fourth Proportional to 31,886.02, 47,807.38 and 17,855.70

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Solution

The fourth proportional to 31,886.02, 47,807.38 and 17,855.70 is: 26,771.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,886.02 : 47,807.38 = 17,855.70 : x
  2. Step 2: Convert to fraction form
    31,886.02/47,807.38 = 17,855.70/x
  3. Step 3: Cross multiply
    31,886.02x = 47,807.38 × 17,855.70
  4. Step 4: Simplify right side
    31,886.02x = 853,634,235.07
  5. Step 5: Solve for x
    x = 853,634,235.07/31,886.02
  6. Step 6: Final answer
    x = 26,771.43

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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.