Home / 22,870.56-34,312.32-18,749.28

Finding the Fourth Proportional to 22,870.56, 34,312.32 and 18,749.28

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Solution

The fourth proportional to 22,870.56, 34,312.32 and 18,749.28 is: 28,129.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,870.56 : 34,312.32 = 18,749.28 : x
  2. Step 2: Convert to fraction form
    22,870.56/34,312.32 = 18,749.28/x
  3. Step 3: Cross multiply
    22,870.56x = 34,312.32 × 18,749.28
  4. Step 4: Simplify right side
    22,870.56x = 643,331,295.13
  5. Step 5: Solve for x
    x = 643,331,295.13/22,870.56
  6. Step 6: Final answer
    x = 28,129.23

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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.