Home / 20,503.24-28,295.69-12,547.01

Finding the Fourth Proportional to 20,503.24, 28,295.69 and 12,547.01

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Solution

The fourth proportional to 20,503.24, 28,295.69 and 12,547.01 is: 17,315.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503.24 : 28,295.69 = 12,547.01 : x
  2. Step 2: Convert to fraction form
    20,503.24/28,295.69 = 12,547.01/x
  3. Step 3: Cross multiply
    20,503.24x = 28,295.69 × 12,547.01
  4. Step 4: Simplify right side
    20,503.24x = 355,026,305.39
  5. Step 5: Solve for x
    x = 355,026,305.39/20,503.24
  6. Step 6: Final answer
    x = 17,315.62

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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.