Home / 18,205.03-25,041.58-15,547.96

Finding the Fourth Proportional to 18,205.03, 25,041.58 and 15,547.96

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Solution

The fourth proportional to 18,205.03, 25,041.58 and 15,547.96 is: 21,386.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,205.03 : 25,041.58 = 15,547.96 : x
  2. Step 2: Convert to fraction form
    18,205.03/25,041.58 = 15,547.96/x
  3. Step 3: Cross multiply
    18,205.03x = 25,041.58 × 15,547.96
  4. Step 4: Simplify right side
    18,205.03x = 389,345,484.18
  5. Step 5: Solve for x
    x = 389,345,484.18/18,205.03
  6. Step 6: Final answer
    x = 21,386.70

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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.