Home / 35,547.80-53,307.30-12,162.20

Finding the Fourth Proportional to 35,547.80, 53,307.30 and 12,162.20

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Solution

The fourth proportional to 35,547.80, 53,307.30 and 12,162.20 is: 18,238.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,547.80 : 53,307.30 = 12,162.20 : x
  2. Step 2: Convert to fraction form
    35,547.80/53,307.30 = 12,162.20/x
  3. Step 3: Cross multiply
    35,547.80x = 53,307.30 × 12,162.20
  4. Step 4: Simplify right side
    35,547.80x = 648,334,044.06
  5. Step 5: Solve for x
    x = 648,334,044.06/35,547.80
  6. Step 6: Final answer
    x = 18,238.37

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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.