Home / 20,501.34-28,293.18-11,547.99

Finding the Fourth Proportional to 20,501.34, 28,293.18 and 11,547.99

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Solution

The fourth proportional to 20,501.34, 28,293.18 and 11,547.99 is: 15,936.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.34 : 28,293.18 = 11,547.99 : x
  2. Step 2: Convert to fraction form
    20,501.34/28,293.18 = 11,547.99/x
  3. Step 3: Cross multiply
    20,501.34x = 28,293.18 × 11,547.99
  4. Step 4: Simplify right side
    20,501.34x = 326,729,359.71
  5. Step 5: Solve for x
    x = 326,729,359.71/20,501.34
  6. Step 6: Final answer
    x = 15,936.98

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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.