Home / 53,313.42-79,970.24-13,870.47

Finding the Fourth Proportional to 53,313.42, 79,970.24 and 13,870.47

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Solution

The fourth proportional to 53,313.42, 79,970.24 and 13,870.47 is: 20,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,313.42 : 79,970.24 = 13,870.47 : x
  2. Step 2: Convert to fraction form
    53,313.42/79,970.24 = 13,870.47/x
  3. Step 3: Cross multiply
    53,313.42x = 79,970.24 × 13,870.47
  4. Step 4: Simplify right side
    53,313.42x = 1,109,225,149.38
  5. Step 5: Solve for x
    x = 1,109,225,149.38/53,313.42
  6. Step 6: Final answer
    x = 20,805.74

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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.