Home / 30,389.58-45,574.65-9,328.77

Finding the Fourth Proportional to 30,389.58, 45,574.65 and 9,328.77

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Solution

The fourth proportional to 30,389.58, 45,574.65 and 9,328.77 is: 13,990.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.58 : 45,574.65 = 9,328.77 : x
  2. Step 2: Convert to fraction form
    30,389.58/45,574.65 = 9,328.77/x
  3. Step 3: Cross multiply
    30,389.58x = 45,574.65 × 9,328.77
  4. Step 4: Simplify right side
    30,389.58x = 425,155,427.68
  5. Step 5: Solve for x
    x = 425,155,427.68/30,389.58
  6. Step 6: Final answer
    x = 13,990.17

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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.