Home / 31,488.21-47,245.95-15,709.01

Finding the Fourth Proportional to 31,488.21, 47,245.95 and 15,709.01

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Solution

The fourth proportional to 31,488.21, 47,245.95 and 15,709.01 is: 23,570.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,488.21 : 47,245.95 = 15,709.01 : x
  2. Step 2: Convert to fraction form
    31,488.21/47,245.95 = 15,709.01/x
  3. Step 3: Cross multiply
    31,488.21x = 47,245.95 × 15,709.01
  4. Step 4: Simplify right side
    31,488.21x = 742,186,864.78
  5. Step 5: Solve for x
    x = 742,186,864.78/31,488.21
  6. Step 6: Final answer
    x = 23,570.31

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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.