Home / 21,001.19-31,507.93-6,210.49

Finding the Fourth Proportional to 21,001.19, 31,507.93 and 6,210.49

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Solution

The fourth proportional to 21,001.19, 31,507.93 and 6,210.49 is: 9,317.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001.19 : 31,507.93 = 6,210.49 : x
  2. Step 2: Convert to fraction form
    21,001.19/31,507.93 = 6,210.49/x
  3. Step 3: Cross multiply
    21,001.19x = 31,507.93 × 6,210.49
  4. Step 4: Simplify right side
    21,001.19x = 195,679,526.65
  5. Step 5: Solve for x
    x = 195,679,526.65/21,001.19
  6. Step 6: Final answer
    x = 9,317.55

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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.