Home / 30,437.91-42,031.04-19,127.00

Finding the Fourth Proportional to 30,437.91, 42,031.04 and 19,127.00

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Solution

The fourth proportional to 30,437.91, 42,031.04 and 19,127.00 is: 26,412.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,437.91 : 42,031.04 = 19,127.00 : x
  2. Step 2: Convert to fraction form
    30,437.91/42,031.04 = 19,127.00/x
  3. Step 3: Cross multiply
    30,437.91x = 42,031.04 × 19,127.00
  4. Step 4: Simplify right side
    30,437.91x = 803,927,711.52
  5. Step 5: Solve for x
    x = 803,927,711.52/30,437.91
  6. Step 6: Final answer
    x = 26,412.05

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Double scale
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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.