Home / 30,386.19-45,563.84-17,740.21

Finding the Fourth Proportional to 30,386.19, 45,563.84 and 17,740.21

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Solution

The fourth proportional to 30,386.19, 45,563.84 and 17,740.21 is: 26,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,386.19 : 45,563.84 = 17,740.21 : x
  2. Step 2: Convert to fraction form
    30,386.19/45,563.84 = 17,740.21/x
  3. Step 3: Cross multiply
    30,386.19x = 45,563.84 × 17,740.21
  4. Step 4: Simplify right side
    30,386.19x = 808,312,159.57
  5. Step 5: Solve for x
    x = 808,312,159.57/30,386.19
  6. Step 6: Final answer
    x = 26,601.30

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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.