Home / 19,353.57-29,030.40-5,313.79

Finding the Fourth Proportional to 19,353.57, 29,030.40 and 5,313.79

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Solution

The fourth proportional to 19,353.57, 29,030.40 and 5,313.79 is: 7,970.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,353.57 : 29,030.40 = 5,313.79 : x
  2. Step 2: Convert to fraction form
    19,353.57/29,030.40 = 5,313.79/x
  3. Step 3: Cross multiply
    19,353.57x = 29,030.40 × 5,313.79
  4. Step 4: Simplify right side
    19,353.57x = 154,261,356.71
  5. Step 5: Solve for x
    x = 154,261,356.71/19,353.57
  6. Step 6: Final answer
    x = 7,970.69

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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.