Home / 21,038.76-31,547.16-6,245.64

Finding the Fourth Proportional to 21,038.76, 31,547.16 and 6,245.64

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Solution

The fourth proportional to 21,038.76, 31,547.16 and 6,245.64 is: 9,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038.76 : 31,547.16 = 6,245.64 : x
  2. Step 2: Convert to fraction form
    21,038.76/31,547.16 = 6,245.64/x
  3. Step 3: Cross multiply
    21,038.76x = 31,547.16 × 6,245.64
  4. Step 4: Simplify right side
    21,038.76x = 197,032,204.38
  5. Step 5: Solve for x
    x = 197,032,204.38/21,038.76
  6. Step 6: Final answer
    x = 9,365.20

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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.