Home / 31,948.64-47,930.80-9,762.40

Finding the Fourth Proportional to 31,948.64, 47,930.80 and 9,762.40

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Solution

The fourth proportional to 31,948.64, 47,930.80 and 9,762.40 is: 14,646.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,948.64 : 47,930.80 = 9,762.40 : x
  2. Step 2: Convert to fraction form
    31,948.64/47,930.80 = 9,762.40/x
  3. Step 3: Cross multiply
    31,948.64x = 47,930.80 × 9,762.40
  4. Step 4: Simplify right side
    31,948.64x = 467,919,641.92
  5. Step 5: Solve for x
    x = 467,919,641.92/31,948.64
  6. Step 6: Final answer
    x = 14,646.00

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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.