Home / 19,088.76-28,478.14-18,055.40

Finding the Fourth Proportional to 19,088.76, 28,478.14 and 18,055.40

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Solution

The fourth proportional to 19,088.76, 28,478.14 and 18,055.40 is: 26,936.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,088.76 : 28,478.14 = 18,055.40 : x
  2. Step 2: Convert to fraction form
    19,088.76/28,478.14 = 18,055.40/x
  3. Step 3: Cross multiply
    19,088.76x = 28,478.14 × 18,055.40
  4. Step 4: Simplify right side
    19,088.76x = 514,184,152.30
  5. Step 5: Solve for x
    x = 514,184,152.30/19,088.76
  6. Step 6: Final answer
    x = 26,936.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.