Home / 53,013.69-79,520.49-13,570.74

Finding the Fourth Proportional to 53,013.69, 79,520.49 and 13,570.74

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Solution

The fourth proportional to 53,013.69, 79,520.49 and 13,570.74 is: 20,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,013.69 : 79,520.49 = 13,570.74 : x
  2. Step 2: Convert to fraction form
    53,013.69/79,520.49 = 13,570.74/x
  3. Step 3: Cross multiply
    53,013.69x = 79,520.49 × 13,570.74
  4. Step 4: Simplify right side
    53,013.69x = 1,079,151,894.46
  5. Step 5: Solve for x
    x = 1,079,151,894.46/53,013.69
  6. Step 6: Final answer
    x = 20,356.10

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1.5x scale

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.