Home / 15,988.89-22,078.53-10,030.80

Finding the Fourth Proportional to 15,988.89, 22,078.53 and 10,030.80

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Solution

The fourth proportional to 15,988.89, 22,078.53 and 10,030.80 is: 13,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.89 : 22,078.53 = 10,030.80 : x
  2. Step 2: Convert to fraction form
    15,988.89/22,078.53 = 10,030.80/x
  3. Step 3: Cross multiply
    15,988.89x = 22,078.53 × 10,030.80
  4. Step 4: Simplify right side
    15,988.89x = 221,465,318.72
  5. Step 5: Solve for x
    x = 221,465,318.72/15,988.89
  6. Step 6: Final answer
    x = 13,851.20

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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.