Home / 22,693.51-31,295.05-15,140.15

Finding the Fourth Proportional to 22,693.51, 31,295.05 and 15,140.15

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Solution

The fourth proportional to 22,693.51, 31,295.05 and 15,140.15 is: 20,878.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,693.51 : 31,295.05 = 15,140.15 : x
  2. Step 2: Convert to fraction form
    22,693.51/31,295.05 = 15,140.15/x
  3. Step 3: Cross multiply
    22,693.51x = 31,295.05 × 15,140.15
  4. Step 4: Simplify right side
    22,693.51x = 473,811,751.26
  5. Step 5: Solve for x
    x = 473,811,751.26/22,693.51
  6. Step 6: Final answer
    x = 20,878.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.