Home / 28,373.40-39,154.98-15,626.34

Finding the Fourth Proportional to 28,373.40, 39,154.98 and 15,626.34

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Solution

The fourth proportional to 28,373.40, 39,154.98 and 15,626.34 is: 21,564.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373.40 : 39,154.98 = 15,626.34 : x
  2. Step 2: Convert to fraction form
    28,373.40/39,154.98 = 15,626.34/x
  3. Step 3: Cross multiply
    28,373.40x = 39,154.98 × 15,626.34
  4. Step 4: Simplify right side
    28,373.40x = 611,849,030.17
  5. Step 5: Solve for x
    x = 611,849,030.17/28,373.40
  6. Step 6: Final answer
    x = 21,564.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.